ракетные базы, конечно, добавляют. но основной источник такого загрязнения- человеческая деятельность. Ground level or "bad" ozone ...is created by chemical reactions between oxides of nitrogen (NOx) and volatile organic compounds (VOC) in the presence of sunlight. Emissions from industrial facilities and electric utilities, motor vehicle exhaust, gasoline vapors, and chemical solvents are some of the major sources of NOx and VOC. https://www.epa.gov/ozone-pollution PM 2.5 comes primarily from combustion. Most particles form in the atmosphere as a result of complex reactions of chemicals such as sulfur dioxide and nitrogen oxides, which are pollutants emitted from power plants, industries and automobiles. Fireplaces, car engines, and coal- or natural gas–fired power plants are all major PM 2.5 sources. That’s why the five U.S. cities with the highest PM 2.5 levels are all in car-crazy central and southern California. https://www.epa.gov/pm-pollution/particulate-matter-pm-basics https://www.nrdc.org/onearth/particulars-pm-25
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но основной источник такого загрязнения- человеческая деятельность.
Ground level or "bad" ozone ...is created by chemical reactions between oxides of nitrogen (NOx) and volatile organic compounds (VOC) in the presence of sunlight. Emissions from industrial facilities and electric utilities, motor vehicle exhaust, gasoline vapors, and chemical solvents are some of the major sources of NOx and VOC.
https://www.epa.gov/ozone-pollution
PM 2.5 comes primarily from combustion. Most particles form in the atmosphere as a result of complex reactions of chemicals such as sulfur dioxide and nitrogen oxides, which are pollutants emitted from power plants, industries and automobiles. Fireplaces, car engines, and coal- or natural gas–fired power plants are all major PM 2.5 sources. That’s why the five U.S. cities with the highest PM 2.5 levels are all in car-crazy central and southern California. https://www.epa.gov/pm-pollution/particulate-matter-pm-basics
https://www.nrdc.org/onearth/particulars-pm-25