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Tag: air pollution

  • Metal Residues 

    Metal Residues  Metal residues are trace amounts of toxic metals, such as lead, mercury, and cadmium, that are released into the environment through industrial activities, waste disposal, or the burning of fossil fuels. These metals can accumulate in the air, soil, and water, contributing to pollution. They pose significant health risks, including neurological damage, kidney…

  • 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…

  • 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,…

  • Volatile Organic Compounds

    Volatile Organic Compounds Volatile Organic Compounds (VOCs) are organic chemicals that easily vaporize into the air at room temperature, contributing significantly to air pollution. VOCs include such compounds as methane, benzene, xylene, propane and butane. VOCs are emitted by various sources, including industrial processes, transportation, and agriculture (ruminants and cultivation). They play a major role…