Snowie 4 7 1 serial trichq5/30/2023 Incomplete combustion of organic materials, in particular fossil fuels, is considered to be the source of these PAHs. PAHs constitute one class of toxic environmental pollutant that has accumulated in the environment because of a variety of anthropogenic activities. The degradation could be by either aerobic or anaerobic pathways. Some of these, like the polyhalogenated aromatics, are chemically inert and therefore can only be degraded by biological means. All of them are reported to have adverse effects on human and animal health. Some of them, such as the PAHs, are potent carcinogens. These are the most common pollutants and are known to persist in the environment. They are found in water, marine systems, soil, sewage, and air. Both anthropogenic and natural causes are known for their accumulation. Organics that include polycylic aromatic hydrocarbons (PAHs), chlorinated aromatic hydrocarbons, chlorinated aliphatic hydrocarbons, halogenated hydrocarbons, biphenyls, phenols, aniline derivatives, phenol ethoxylates, and benzoic acid derivatives, are ubiquitous in environment. This chapter discusses some most omnipresent organic pollutants in environment.
0 Comments
Leave a Reply. |