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… can be significantly different from levels that cross biological membranes, reach their target tissues, and exert … hospital admissions after high pollution days. The biological plausibility of the effects of PM on …

… air pollution’ means any physical, chemical or biological alteration in the composition or quality of the … of such agents, including any physical, chemical, biological, radioactive … substance or matter which is … provides that the parties, “desiring to put an end to the contamination of man’s environment by radioactive substances” …

… N2O, which is emitted predominantly in the atmosphere by biological sources in soil and water. Although it exists in … Dry cleaning refers to any process to remove dirt or contamination from furs, leathers, down leathers, textiles or … derived from ligno-cellulosic biomass using chemical or biological processes. Biogas Biogas is derived principally …