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Very small amount of air pollutants are present in stratosphere also; though most of the atmospheric pollutants are present in the troposphere. Which of the following atmospheric pollutants does not cause the ozone layer depletion in atmosphere at tremendous rate?
High concentration of carcinogenic hydrocarbon pollutants in atmospheric air causes
Moist atmospheric air at high temperature (e.g., in summer) having high concentration of sulphur dioxide causes
Presence of high concentration of ozone and smog in atmospheric air causes the
Most of the atmospheric air pollutants are present in large quantity in
Fluorosis (a bone disease) is caused by the presence of high concentration of __________ in atmospheric air.
Atmospheric pollution caused by the exhaust gas of supresonic transport air-crafts is mostly in the atmospheric region called
From pollution control point of view, the maximum permissible concentration of sulphur dioxide in atmospheric air is about __________ ppm.
Tolerable concentration of toxic carbon monoxide in atmospheric air is about __________ PPm.
Sooty and sulphurous smog formed due to combustion of fossil fuels particularly in winter, continues throughout the day and night. When the moist atmospheric air's water vapor condenses on the solid particles of smoke thereby forming smog (smoke + fog), it causes