'Maximum permissible concentration' diaporamas de présentation

Chemistry and environment

Chemistry and environment. has executed Maksimov Alexander. The most serious problems of our time connected with ecology : -Concourse of the Rubbish -Acid Rain - Hotbed Effect -Ozone Holes -Climatic Catastrophes. Chemical contamination biosphers: -Oxides of carbon

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a weather phenomenon where a warm layer of air is on top of a cooler layer of air; traps pollutants in the lower atmosphere. air pollution from automobile exhaust that is formed by sunlight causing chemical reactions with nitrogen oxides and hydrocarbons; it forms a brownish haze.

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