Tag: anthropogenic gas
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Fine Particulate Matter
Fine Particulate Matter Fine particulate matter are microscopic particles suspended in the air, known as aerosols. PM10 includes particles smaller than 10 micrometers, and PM2.5 refers to those under 2.5 micrometers. These particles originate from human activities (e.g., industry, transport, agriculture) and natural sources (e.g., wildfires, volcanic eruptions) or form through chemical reactions in the…
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Nitrogen Oxides
Nitrogen Oxides Nitrogen Oxides (NOx) is a group of reactive gases primarily composed of nitric oxide (NO), a colorless, odorless gas, and nitrogen dioxide (NO₂), a reddish-brown gas with a pungent odour. NO forms during high-temperature combustion processes and reacts with oxygen or ozone in the air to create NO₂. NOx contributes to air pollution,…
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Sulfur oxides
Sulfur oxides Sulfur oxides (SOx), primarily sulfur dioxide (SO₂), are gases produced mainly by burning fossil fuels and certain industrial processes. They contribute to air pollution, acid rain, and respiratory issues when released into the atmosphere and can react with water vapor to form sulfuric acid, damaging ecosystems and infrastructure.
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Greenhouse gas
Greenhouse gas Greenhouse gases (GHG) are those gaseous constituents of the atmosphere, both natural and anthropogenic, that absorb and emit radiation at specific wavelengths within the spectrum of terrestrial radiation emitted by the Earth’s surface, the atmosphere itself and by clouds. Water vapor (H2O), carbon dioxide (CO2), nitrous oxide (N2O), methane (CH4) and ozone (O3)…