Methodology of evaluating economic losses resulting from partial loss of the air ecosystem ’ s assimilative capacity

Nowadays the ecosystem approach is widely applied in many countries globally to evaluate economic losses from pollution of the natural environment. In Ukraine, it is reasonable to develop both the methodology of evaluation of economic losses from pollution of the natural environment and the methodology of calculation of correlating coefficients of ecosystems’ assimilative properties for differentiation of the volumes of repayment of economic losses from pollution of nature. The following methods were used in the research: economic and mathematical modeling – for formalization of the evaluation of economic losses from partial loss of the air ecosystem’s assimilative capacity; synthesis and analysis, system approach – for analysis of existing mathematical models, evaluation of economic losses from air pollution and forming of institutional environment of calculation of economic losses from partial loss of the air ecosystem’s assimilative capacity; inductive – for making conclusions over the best methodological approach to be used for calculation of oxygen production costs. The condition of the institutional environment is analyzed, including the regulatory and organizational maintenance of evaluation of economic losses from air pollution. The paper proves that the existing relevant institutional environment is partially coordinated with international formal rules and organizational structures, which evaluate such economic losses; however, their further efficient evaluation requires timely transformation based on the ecosystem approach to EU directives. The recommendations regarding the institutionalization of the process of ecosystem calculation of caused and prevented losses from the partial loss of the air ecosystem’s assimilative capacity are suggested: application of 2008/50/EU Directive of European Parliament and Council as of May 21, 2008 on Ambient Air Quality and Cleaner Air for Europe; review of the amounts of harmful substances TLV in the air; the need to take into account certain factors while calculating economic losses from air pollution (including the calculation of damage to life and health of each person due to air pollution), approval of the documents already developed and adopted but suspended by the Ministry of Justice of Ukraine, etc. New methodological approaches to alternative evaluation of economic losses from partial loss of the air ecosystem’s assimilative capacity as opposed to the current one are suggested, including methodological approaches to calculation of the oxygen and nitrogen production costs on the basis of the carbon offsets realization; methodological approaches to calculation of the oxygen production costs based on installation of artificial photosynthesis; methodological approaches to calculation of the oxygen production costs based on natural photosynthesis – planting and conservation of forests; methodological approaches to calculation of the oxygen and nitrogen “production” costs in metallurgical production; methodological approaches to calculation of prevented economic losses from partial loss of the air ecosystem’s assimilative capacity, which are manifested in the long run or those of indirect nature.


Introduction.
Nowadays it is rather problematic to evaluate economic losses from pollution or degradation of the ecosystem of any territory, therefore application of the ecosystem approach is of the utmost importance. The approach should include the following components: atmospheric air, water and land resources, flora and fauna, etc. If, for example, due to fire the condition of atmospheric air deteriorates not only in a certain ecosystem, but also in the territory of other countries, i.e. the crossborder pollution, other methodological approaches are needed. There can be no universal methodology to evaluate economic losses from the negative influence on the environment (land and water resources, atmospheric air) since some enterprises pollute the atmosphere and othersonly the water in rivers. The differentiation in evaluation of losses provides the necessary effect. The current Methodology of Calculation of Compensation for Losses Inflicted on Nature of the State due to Excessive Emissions of Pollutants into the Atmospheric Air (Ministry of Environmental Protection of Ukraine, 2008) is biased and does not take into consideration the ecosystem approach, remote expenditures and evaluation of losses inflicted upon the life and health of each person due to pollution of atmospheric air, increased morbidity rate, negative consequences of pollution of water resources and soils by precipitations and reduction of ecosystems' bioproductivity.
The question of approaches to evaluation of losses from pollution of the environment is outlined in the research of domestic and foreign scientists (Davydova, 2018;Emerton, 2003;Kvashyn et al., 2013;Lakyda, 2011;Lobasov, 2013;Matyukha, 2016;Mayer et al., 2012;Maksymiv, 2016;Meng, 2015;Razovskyi, 2017;Tagaeva, 2015). The detailed analysis of methodology of evaluation of losses from environmental pollution taking into account the ecosystem approach abroad was conducted by (Balatsky, 2007;Boldyrev, 2001;Yazhlev, 2009). However, despite a great amount of research, the evaluation of the loss of the air ecosystem's assimilative capacity remains underdeveloped. The paper aims to develop methodological approaches to evaluation of economic losses from partial deprivation of the air ecosystem's assimilative capacity taking into account the institutional aspects. Material and methods of research. The following general scientific methods were applied to perform the research: economic and mathematical modeling to formalize the evaluation of economic losses from partial deprivation of the air ecosystem's assimilative capacity (with representation of the authors' mathematical formulas); methods of synthesis, analysis, induction, deduction and system approachto process the received materials and foreign experience and to analyze existing mathematical models that evaluate economic losses from air pollution and to form an institutional environment of evaluation of economic losses from partial deprivation of the air ecosystem's assimilative capacity, including the comparative analysis methodto calculate the cost of oxygen production over a period of years; inductive methodto develop conclusions on which method should be used to calculate the cost of oxygen production; analysis methodto prove that the current Methodology of Calculation of Compensation For Losses Inflicted on Nature of the State due to Excessive Emissions of Pollutants into the Atmospheric Air (Ministry of Environmental Protection of Ukraine, 2008) is biased and does not consider the ecosystem approach, etc; as well as specific ones, in particular the method "all things being equal"to calculate optimal cost of oxygen and nitrogen production based on installation of artificial photosynthesis (Suhina, 2018) and to develop methodological approaches to calculation of oxygen and nitrogen "production" in metallurgy and calculation of oxygen production costs to be compared to those outlined in the research. Results and their analysis. Analysis of existing mathematical models to evaluate economic losses from environmental pollution shows that certain scientific capacity in the sphere is already created and is further displayed both in scientific works and in regulations. The situation abroad is like this: "Most of evaluations of losses from 1 t of СО2 are within $ 10.0-100.0 or $ 0.03-0.3 per gallon of gasoline. Evaluation of losses calculated based on American data exceeds dozens or even hundreds thousands times the Ukrainian evaluations" (Melnyk, 2004).
Unfortunately, Ukrainian legislation in the sphere of guaranteeing the ecological security and introduction of efficient ecological policy falls short of the requirements of EU Directives. Harmonization of Ukrainian laws with EU legislation is mentioned in the Chapter "Environmental governance and integration of environment into other policy areas" of Annex ХХХ to Chapter 6 "Environment" of Title V "Economic and Sector Cooperation" of Association Agreement between Ukraine, on the one hand, and the European Union, the European Atomic Energy Community and their Member States, on the other hand (2014). However, the ecosystem approach is not applied properly in Ukraine and no measures to prevent losses are taken. Regarding the institutional provision of evaluation of economic losses from air pollution, it is worth mentioning that it is necessary that the Ministry of Justice of Ukraine approves the regulations already developed and adopted but currently suspended. For example, "State sanitary rules of protection atmospheric air of settlements (from chemical and biological pollutants) (SSR-201-97)" -Decree of the Ministry of Healthcare of Ukraine as of 9 July 1997, № 201 wasn't registered by the Ministry of Justice of Ukraine and was terminated as of 7 August 2014 (Ministry of Healthcare of Ukraine, 1997).
While calculating the losses from environmental pollution it is necessary to use the procedure on protection of atmospheric air of settlements indicated in the Decree of the Ministry of Healthcare of Ukraine as of 19 June 1996, № 173 "On Approval of State Sanitary Rules of Settlements' Planning and Development" (Ministry of Healthcare of Ukraine, 1996) Therefore, institutionalization of the process of ecosystem-based calculation of inflicted and prevented losses from partial deprivation of the air ecosystem's assimilative capacity can include the following legal and economic instruments: - development of recommendations to apply the ecosystem approach in the course of elaboration of methodological approaches to evaluation of economic losses from atmospheric air pollution; development of recommendations to consider certain factors in evaluation of economic losses from atmospheric air pollution (including calculation of damages to life and health of each person due to atmospheric air pollution).
review of the volumes of average daily concentration limit (hereinafter-CL) of atmospheric air pollutants (Ministry of Environmental Protection of Ukraine, 2006; Cabinet of Ministers of Ukraine, 2001), etc; development of methodological approaches to calculation of the oxygen and nitrogen production costs based on realization of carbon offsets; development of methodological approaches to calculation of the oxygen production costs based on installation of artificial photosynthesis; development of methodological approaches to calculation of the oxygen production costs based on natural photosynthesisdeveloping and keeping of forests; development of methodological approaches to calculation of the oxygen and nitrogen "production" costs in metallurgy; development of methodological approaches to calculation of prevented economic losses from the deterioration of the air ecosystem's assimilative capacity, visible in time and of indirect nature; O. Suhina,S. Shults,V. Tkach ,N. Popadynets,O. Kamushkov Journ.Geol.Geograph.Geoecology,28(1),[188][189][190][191][192][193][194][195][196][197][198] adoption of already developed and approved but currently suspended regulations by the Ministry of Justice of Ukraine, etc.
It is reasonable to take into account not only direct losses emerging in separate periods of time (healthcare costs. etc), but also the remote ones, i.e. those that can emerge in future due to illnesses or health deprivation (additional losses due to reduced work capacities in future, etc).
It is necessary to calculate losses caused to the territory and life and health of each person due to atmospheric air pollution.
As for now, we have developed methodological approaches to evaluation of economic losses from partial loss of the air ecosystem's assimilative capacity, which is alternative to the existing one, in particular: methodological approaches to calculation of oxygen and nitrogen production cost based on realization of carbon offsets; methodological approaches to calculation of the oxygen production costs based on installation of artificial photosynthesis; methodological approaches to calculation of the oxygen production costs based on natural photosynthesisdeveloping and preservation of forests; methodological approaches to calculation of the oxygen and nitrogen "production" costs in metallurgy and methodological approaches to calculation of prevented economic losses from the loss of the air ecosystem's assimilative capacity, visible in time and of indirect nature.

Methodological approaches to calculation of oxygen and nitrogen production cost based on realization of carbon offsets and the calculation itself.
For each type of "work" of nature's (an ecosystem's) assimilative capacity, it is reasonable to form concrete methodological approaches to evaluation of its value in terms of neutralization of pollutants. The technologies (waste management, water purification and desalination, atmospheric air purification, etc) are constantly being improved and becoming cheaper. For example, there is a shortage of fresh water in Israel, therefore the seawater is desalinated for economic needs. The cost of "work" of assimilative capacity of water, forests and air should be evaluated based on a new combination of parameters of complex, synergy type, which should be applied in the process of differentiation of rentals for the use of ecosystems' assimilative services.
V.М. Boldyrev (Boldyrev, 2001) deems it necessary to establish quotas not for anthropogenic СО2 emissions, bur rather for anthropogenic consumption of atmospheric oxygen. The approach can become the foundation of the Paris Agreement on Climate Change. The USA and Russia have developed regulations on taxes on air. In due time, in the Kyoto Protocol the countries established the rate of $ 10 per each ton of СО2 absorbed by "green lungs" of a certain country above its emission limit (the cost ranged, at times it amounted to $ 3). When hydrocarbon fuel burns, the atmospheric oxygen is also spent on water production. After plants have absorbed the whole carbon dioxide from hydrocarbon fuel combustion, they do not restore the initial content of oxygen in the atmosphere. If industrially developed countries are ready to pay $ 10 per one ton of "extra" СО2 emission and as far as 0.727 tons of oxygen emerge due to decomposition of one ton of carbon dioxide, then possibly $ 13.8 (10/0.727) is the reasonable cost of plants' production of one ton of atmospheric air.
The main components of dry air are nitrogen (78.09 %) and oxygen (20.95 %), as well as small volumes of carbon dioxide, hydrogen and other gases. In this case, we take into account oxygen and nitrogen.
We suggest calculation of the cost of their production based on realization of carbon offsets by the formula: (1) where: o Coxygen cost, UAH/t; 2 co Ccost of "extra" carbon dioxide on the carbon market (cost of carbon offsets), UAH/t. Calculation sample. Cost of carbon offsets. In May 2018 at the Innovate4Climate Forum in Frankfurt, the World Bank and the International Emissions Trading Association (IETA) announced that currently more than the half of all emission under "carbon" mechanisms is traded at over $ 10.0 per ton of СО2equivalent (in 2017only the quarter). The experts expect the further growth of prices within the European Trade System (ETS)up to € 22.0 after 2021. Nowadays, the price of a ton of СО2 within the ETS amounts approximately to € 15. The experts of the International Emissions Trading Association (IETA) think that in order to achieve the goals of the Paris Agreement (constraining the global temperature growth within 2°С) an average price for 1 ton of СО2 should be no less than € 50.0. Therefore, they emphasize that governments should take more measures in the sphere of greenhouse gas reduction (Davydova, 2018). Cost of oxygen and nitrogen. Calculations are done based on data as of 1 August 2018, when $ O. Suhina, S. Shults, V. Tkach , N. Popadynets, O. Kamushkov Journ.Geol.Geograph.Geoecology, 28(1), 188-198 ________________________________________________________________________________________________________________________________________________________________ 1 was worth 27.01 UAH. The cost of carbon dioxide emission quota was $ 10.0. (І scenario), $ 3.0 (ІІ) and $20.0 (ІІІ scenario). However, the data of V.М. Boldyrev are related to extra emissions, so in calculations we should take lower rates. 1 scenario. According to the formula (1) (carbon dioxide cost -$ 10.0), oxygen cost is UAH 372.6/t ($ 13.8/t).
With 0.001429 t of gaseous oxygen in 1 cubic meter, the cost 1 of a cubic meter of oxygen amounts to $ 0.0197202/m 3 (UAH 0.5324454/m 3 (the cost of nitrogen in calculations will be about the same): cost of 0.0017m 3 of air (oxygen and nitrogen) for dilution of 1 mg of СO2 with 589 mg/m 3 СO2 concentration (Kvashyn, 2008) in the air will be $ 0.00003352434 (UAH 0.00090515718).
With 0.001429 t of gaseous oxygen in 1 cubic meter, the cost of a cubic meter of oxygen amounts to $ 0.0058589 (UAH 0.1581903/m 3 ) (the cost of nitrogen in calculations is about the same): cost of 0.0017m 3 of air (oxygen and nitrogen) for dilution of 1 mg of СO2 with 589 mg/m 3 СO2 concentration in the air is $ 0.00000996013 (0.00026892351 UAH).
With 0.001429 t of gaseous oxygen in 1 cubic meter, the cost of a cubic meter of oxygen amounts to $ 0.0392975 (UAH 1.0610325/m 3 ) (the cost of nitrogen in calculations is about the same): cost of 0.0017m 3 of air (oxygen and nitrogen) for dilution of 1 mg of СO2 with 589 mg/m 3 СO2 concentration in the air is $ 0.00006680575 (UAH 0.00180375525).
According to the World Bank, as of 2016, the carbon tax per one ton of СО2 was established in the The European Commission has developed a long-term strategic program called 2050 Energy Roadmap with the major objective of massively introducing technologies of carbon capture and storage for 2030-2050. According to various data, the capture and storage cost of 1 t of СО2 will be € 40.0 to 400.0). As far as the companies are better off paying, for example, € 17.0 for СО2 emission rather than € 400.0 for its utilization, the framework of this strategic program suggests the increase of tariffs in order to raise interest in the technologies of carbon dioxide storage: by 2020 the charge on CO2 emissions will be in average € 38.0/t, and by 2030 -€ 85.0/ t. While in developed countries the charge on carbon dioxide emissions and its utilization are about to grow up to hundreds of euros, in Ukraine the rate has increased only by 2 kopecks in the last couple of years (from 24 to 26 kopecks/t in 2014). According to Art. 243.4 of the Tax Code of Ukraine, as of 1 August 2018, the charge on carbon dioxide emissions was UAH 0.41 per 1 ton.
In Norway the charge on carbon dioxide emissions was almost €40/t already back in 2008. However, the oil & gas company «Statoil Hydro» claimed that even with this charge they are better off emitting CO2 into the atmosphere rather than injecting it into the strata.
In 2016 an article on construction of the world's first commercial plant for capturing carbon dioxide from air in Zurich by the Swiss company Climeworks was published (almost 2-3 tons of carbon dioxide daily) (Cryogen, 2016). Afterwards, it was planned to be sold to agricultural producers. Nowadays the cost of one ton of СО2 amounts to $ 600.0 thousand. Climeworks claims to reduce the price to make the DAC technology cost-effective. The direct air capture technology (DAC) stipulates the use of fibrous sponge-like filter material that has been impregnated with chemicals called amines. Amines derive from ammonia, which bind to CO2. The filtered air is cleaned up from carbon dioxide. The method of direct air capturing and purification is used in submarines and the ISS (International Space Station). Methodological approaches to calculation of oxygen production cost based on installation of artificial photosynthesis.
The developers of the system of artificial photosynthesis to initiate chemical reaction suggest the use of a device, similar to a solar panel in its functions and materials. Therefore, in order to calculate the cost of oxygen production we have to find out the cost of artificial photosynthesis installation (including the cost of necessary solar panels), its servicing and water. Carbon dioxide from atmosphere is a free of charge natural raw material.
Calculation sample.
Calculations of oxygen production cost by this method. Given the UAH 0.03375/m 3 (3.375 kopecks/m 3 ) cost of oxygen and nitrogen productionmajor air componentsin August 2018: • cost of 20m 3 of air for dilution of 1 mg of SO2 with 0.05 mg/m 3 CL (average daily) (Ministry of Healthcare of Ukraine,1997) 2 -UAH 0.675; • cost of 0.0017m 3 of air for dilution of 1 mg of СO2 with 589 mg/m 3 СO2 concentration in air -UAH 0.000057375.
By this method, we can calculate the cost of oxygen for dilution of each pollutant applying the CL rates.

Methodological approaches to calculation of oxygen production cost based on natural photosynthesisdevelopment and preservation of forests.
Oxygen production cost based on natural photosynthesis is calculated by the formula: (2) where: Each minute 30ha of forests are destroyed on our planetthe green "lungs" of the planet. Each year one percent of forest disappears from the planet Earth.
According to the State Agency of Forest Resources of Ukraine at least UAH 12.0-15.0 thousand. are needed to plant (manually, to plant forest without total ploughing) 1ha of pine forests and to preserve it. However, one has to wait 80-90 years before logging (up to 200 years for oak forests), constantly spending significant funds (up to UAH 17.0 thous.) for protecting and protecting the forest from pests or harsh weather. These are substantial funds for the newly created territorial communities.
In 2009, Ukraine adopted the Methodology of Calculation of Green Plantings' Replacement Value (Ministry of Housing of Ukraine, 2009).
The results of Ukrainian scientists' research (І.P. Lakyda et al.) were also used for our calculations (Lakyda, 2011). Oak and pine trees have the strongest oxygen production capacity (6.7t/ha and 4.8-5.9t/ha accordingly). Each year 1ha of 20-year old pine forests absorbs 9.35t of carbon dioxide and generates 7.25t of oxygen and one ha of those 60-year old -14.4t and 10.9t. In their turn, 40-year old oak forests absorb 18t of carbon dioxide and generate 13.9t of oxygen each year. Moreover, artificially developed forests have a lower level of oxygen production. І.P. Lakyda has determined that oxygen production of urban modal artificial pine forests in Kyiv amounts to from 38.2 (age -10 years) to 2,224.6 (age -140 years) t/ha by general productivity.
As of July 2018, the cost of preserving and protecting from pests of 1ha of forests amounted to UAH 17.0 thous. annually (calculations are based not on the cost of land or afforestation, but only on approximate cost of preserving the forest for 1 year).
4.8t/ha of oxygen generated by pine forest costs UAH 17.0 thous.
This methodological approach can be applied when assessing the economic losses from atmospheric air pollution.
For comparison. As of July 2013, the cost of preserving and protecting and from pests 1ha of forests -UAH 5 thous. annually (calculations are based not on the cost of land or afforestation, but only on approximate cost of preserving the forest for 1 year).
4.8t/ha of oxygen generated by pine forest costs UAH 5 thous.
Then the cost of one t of oxygen is: UAH 1.04 thous. (UAH 5.0 thous. : 4.8t of oxygen (as far as artificially planted forests generate less oxygen than natural ones, we use lower rates in our calculations)).
With 0.001429t of gaseous oxygen in 1m 3 , the cost of 1m 3 of oxygen is UAH 1.48616/m 3 (in calculations the cost of nitrogen will be about the same); cost of 0.0017m 3 of air for dilution of 1 mg of СO2 with 589 mg/m 3 СO2 concentration in the air -UAH 0.002526472.

Methodological approaches to calculation of the oxygen and nitrogen "production" costs in metallurgy.
The data is provided only as an example, because oxygen is not produced but only concentrated by modern generatorshigh-speed turbo expanders (nitrogen is replaced by oxygen). Nitrogen is forced out using concentrators at low temperatures (-182.9°С) through rectification. According to state technical standard 5583-78, oxygen varies by the degree of purity (99.7-99.2 %). However, harmful substances dissolve in nitrogen, the cost of production (concentration) of which is about the same. Oxygen is essential not only for intensification of chemical and metallurgical processes (steelmaking, welding); it is often used for maintaining the functioning of living organisms (emergency oxygen supply in bomb shelters (in cylinders) and in submarines, medical gaseous oxygen for breathing and therapeutic purposes). That is why it is generated using highperformance turbochargers and expanders, which are correspondingly expensive. Electric energy consumption for obtaining of 1m 3 of industrial pure oxygen О2 is 0.4-1.6 kWh (depending on the installation type) or up to 4.1kWh per 1kg of liquefied air with the pressure in compressor 200kgf/сm 2 . Chemical generation of oxygen from various substances is not efficient and is currently good only for laboratories. Oxygen is electrolytically generated for industrial needs as well (in particular, where electric power is cheap).
Oxygen is massively used in medicine and recreation. It is likely that cardiovascular and other diseases are caused by the lack of oxygen in everyday life. In other words, because of the lack of oxygen people fall ill and significant sums pay for oxygen treatment. However, those who pollute the atmosphere only get richer; medical workers and producers of oxygen for therapeutic purposes also profit from human diseases.
Moreover, oxygen is used in agriculture, in the fishing industry (for fish, shrimp and mussel farming) and to increase the flame temperature in incinerators.
Therefore, insofar as today technically pure oxygen in industry is generated in two waysfrom air (through deep freezing in special air separation installations) and from water (through electrolysis), the abovementioned cost of oxygen production is acceptable for calculations. Oxygen production from air is more cost efficient: 0.5-1.6kWh of electrical power is needed to generate 1m 3 of oxygen. 10-21kWh is necessary to obtain 1m 3 of oxygen through water electrolysis.
Nowadays there are no efficient installations to produce oxygen or nitrogen. If we take the UAH 1.76/m 3 cost of oxygen production by generators, the nitrogen cost will be UAH 2.63/m 3 . We use the lowest cost of oxygen production for calculations -UAH 1.76/m 3 and UAH 43.64/m 3 (cost of oxygen or nitrogen in tanks is not considered so far); nitrogen cost -UAH 2.63/m 3 and UAH 43.64/m 3 (depending on the way oxygen and nitrogen are produced). Then the cost of 4.2m 3 of oxygen will be from UAH 7.43 to 183.26. The cost of 15.6m 3 of nitrogen will be from UAH 41.18 to 680.74. At these rates, the air will cost from UAH 48.6 to 864.0 without the cost of generators, which cost hundreds of thousands of dollars in industrial production. Therefore, for dilution of 1 mg of SO2 an enterprise has to pay from UAH 48.6 to 864.0 for O. Suhina,S. Shults,V. Tkach ,N. Popadynets,O. Kamushkov Journ.Geol.Geograph.Geoecology,28(1),[188][189][190][191][192][193][194][195][196][197][198] exploitation of air. Nature provides the air free of charge; an economic entity saves money in such a way and receives the rentthe ecological one. Calculation sample. 1. Given the cost of oxygen and nitrogen productionmajor air components -UAH 1.76/m 3 and UAH 2.63/m 3 : cost of 19.8m 3 of air for dilution of 1 mg of SO2 with CL 0.05 mg/m 3 -UAH 48.6 (cost of oxygen for dilution of 1 mg of SO2 with 4.2m 3 volume -UAH 7.43; cost of 15.6m 3 of nitrogen -UAH 41.18); cost of 0.001683m 3 of air for dilution of 1 mg of СO2 with 589 mg/m 3 СO2 concentration in air -UAH 0.00411723 (cost of 0.000357m 3 of oxygen -UAH 0.000626535; cost of 0.001326m 3 of nitrogen -UAH 0.003490695); with production cost of oxygen UAH 1.76/m 3 , the cost of 1t of oxygen -UAH 1228.13145 (i.e. 3.3 times more than oxygen quotas suggested by V.М. Boldyrev by-UAH 372.6/t ($ 46.58/t)).
2. Given the cost of oxygen and nitrogen productionmajor air components -UAH 43.64/m 3 (depending on the way oxygen and nitrogen are produced): cost of 19.8m 3 of air for dilution of 1 mg of SO2 with CL 0.05 mg/m 3 -UAH 864.0; cost of 0.001683m 3 of air for dilution of 1 mg of СO2 with 589 mg/m 3 СO2 concentration in air -UAH 0.07344401625; with production cost of oxygen UAH 43.64/m 3 , the cost of 1t of oxygen -UAH 30537.9635625/t (i.e. 82 times more than oxygen quotas suggested by V.М. Boldyrev by-UAH 372.6/t ($ 46.58/t)).
For comparison. As of July 2013. 1. Given the cost of oxygen and nitrogen productionmajor air components -UAH 0.52/m 3 and UAH 0.78/m 3 : cost of 19.8m 3 of air for dilution of 1 mg of SO2 with CL 0.05 mg/m 3 -UAH 14.4 (cost of oxygen for dilution of 1 mg of SO2 with 4.2m 3 volume -UAH 2.2; cost of 15.6m 3 of nitrogen -UAH 12.2); cost of 0.001683m 3 of air for dilution of 1 mg of СO2 with 589 mg/m 3 СO2 concentration in air -UAH 0.00121992 (cost of 0.000357m 3 of oxygen -UAH 0.00018564; cost of 0.001326m 3 of nitrogen -UAH 0.00103428).
2. Given the cost of oxygen and nitrogen productionmajor air components -UAH 12.93/m 3 (depending on the way oxygen and nitrogen are produced): cost of 19.8m 3 of air for dilution of 1 mg of SO2 with CL 0.05 mg/m 3 -UAH 256; cost of 0.001683m 3 of air for dilution of 1 mg of СO2 with 589 mg/m 3 СO2 concentration in air -UAH 0.02176119; with production cost of oxygen UAH 12.93/m 3, the cost of 1t of oxygen -UAH 9048.2855/t (i.e. 82 times more than suggested by V.М. Boldyrev by oxygen quotas -UAH 110.4/t ($ 13.8/t)).
Although nowadays it is reasonable to apply the ecosystem approach to evaluate losses from atmospheric air pollution, we still should not abandon the normative approach, in particular the application of CL. Indeed, the amount of compensation of damage to nature depends on how atmospheric air is purified. If there is no criterion, how do we understand whether the air is purified or not? If cleaning is only done on a small scale, then it will be unknown whether the air is suitable for respiration by humans. Another matter is that the CL rates should be reviewed. Methodological approaches to calculation of prevented economic losses from the loss of the air ecosystem's assimilative capacity, distant in time and of indirect nature.
The document "Temporary Methods of Determining Prevention of Ecological Losses " (State Committee of Russian Federation on Environmental Protection, 1999) provides the following definition: "2.10. Prevented economic loss from atmospheric pollution is the evaluation in monetary terms of possible negative consequences from pollution, avoided in a certain period of time due to operation of environmental authorities, complex of activities undertaken for air protection and implementation of nature protection programs".
In order to purify atmospheric air it is reasonable to plant trees and undertake other nature protection activities. According to State Agency of Forest Resources of Ukraine as of September 2016, at least UAH 7-8.0 thous. are needed to plant (manually) 1ha of pine forest and to preserve it. However, one has to wait 80-90 years before logging (up to 200 years for oak forests), constantly spending significant funds for conserving the forest and protecting it from pests or adverse weather.
Millennium Ecosystem Assessment finds that in the majority of countries the market values of ecosystems related to production of timber and firewood are less than 1/3 of their overall economic cost, including the non-market values, such as carbon sequestration, water protection functions and recreation.
Preventive measures are costly, but they contribute to purification of atmospheric air. In addition to installation of filters and modernization of production, it is also reasonable to plant trees. Indeed, Lakyda І.P. (Lakyda, 2011) calculates that oak and pine trees have the strongest oxygen production capacity (6.7t/ha and 4.8-5.9t/ha accordingly). Each year 1ha of 20-yeas old pine forests absorbs 9.35t of carbon dioxide and generates 7.25t of oxygen and one ha of 60-year old pines absorbs 14.4t of carbon dioxide and generates 10.9t of oxygen. In their turn, 40-year old oak forests absorb 18t of carbon dioxide and generate 13.9t of oxygen each year. Moreover, artificially developed forests have a lower level of oxygen production. І.P. Lakyda has determined that oxygen production of urban modal artificial pine forests in Kyiv ranges from 38.2 (age -10 years) to 2,224.6 (age -140 years) t/ha by general productivity.
To evaluate the prevented economic losses from atmospheric air pollution, it is reasonable to use the current Methods of Calculation of Vegetation Replacement Cost (2009)  The replacement of the cost of trees and shrubs consists of the cost of their development (planting) and maintenance in previous years, taking into account the characteristics that define their value: k dev C C   r C ; (4) where: r Creplacement cost of trees and shrubs; dev Ccost of development (planting) of trees and shrubs (the complex of work on their development and maintenance in the engraftment period); k Ccost of preserving trees and shrubs in previous years, taking into account the characteristics that define their value.
Indeed, in our calculations we use the most efficient method used abroadthe method of replacement costs.

Conclusions.
Therefore, the institutional environment that includes regulative and organizational provision of evaluation of economic losses from pollution of atmospheric air is partially coordinated with international formal rules and organizational structures that evaluate economic losses. However, timely transformation based on the ecosystem approach and EU directives is necessary for further efficient evaluation of maintenance.
Definitions indicated in Article 2 of the Directive 2008/50/EC of the European Parliament and of the Council of 21 May 2008 on Ambient Air Quality and Cleaner Air for Europe can be applied for methodological approaches to evaluation of economic losses from partial loss of the air ecosystem's assimilative capacity. However, the ecosystem approach is not apparent in the Directive.
Regarding the development of methodological approaches to evaluation of economic losses from atmospheric air pollution based on the ecosystem approach, it is reasonable to use correlation coefficients of ecosystems' assimilative properties in the new methodology and to improve the current Methodology of Calculation of Compensation for Losses Inflicted on the Nature of the Nation Due to Excessive Emissions of Pollutants into the Atmospheric Air to differentiate the charge of compensation of economic losses from atmospheric air pollution.
In order to define the volumes of economic losses from partial deprivation of the air ecosystem's assimilative capacity, it is necessary to reveal the harmful impact of dangerous chemical substances on human health, flora or fauna and ecosystems. The table "Dangerous chemical substancesair pollutants with harmful impact on human health, flora or fauna and ecosystems" or "Emissions of chemical and radioactive substances by TPPs into the atmospheric air and their possible consequences for public health" should be developed.
Therefore, development of the authors' methodological approaches to defining the amounts of economic losses from partial loss of the air ecosystem's assimilative capacity can become the foundation of a new methodology in Ukraine. Further scientific research should forward the development of methodological approaches to evaluation of the operation cost of the air ecosystem's assimilative capacity, although based on other methods, like the hedonic one, or in the context of marginal utility theory centered around the defining of subjective economic value of benefits for a concrete consumer. pogasheniya dolgov Rossii [Atmospheric oxygen