Respiratory disease is a symptom of exposure to nitrogen dioxide. What concentration and period of exposure does one need to have for it to manifest?

Sources and Effects of Air Pollution topics include: Air pollutants sources and classification, particulates characteristics and sources, gaseous pollutants characteristics, air pollutants effects on human health, materials and animals, behavior and standards of air pollutants. Air pollution can come from many sources, including: Stubble burning: A major source of air pollution in northern India, especially in winter Indoor sources: Heating a house by burning substances such as kerosene, wood, and coal Agricultural activities: Especially pesticides and fertilizers Carbon monoxide:... Show more

Sources and Effects of Air Pollution topics include: Air pollutants sources and classification, particulates characteristics and sources, gaseous pollutants characteristics, air pollutants effects on human health, materials and animals, behavior and standards of air pollutants.

Air pollution can come from many sources, including:
Stubble burning: A major source of air pollution in northern India, especially in winter
Indoor sources: Heating a house by burning substances such as kerosene, wood, and coal
Agricultural activities: Especially pesticides and fertilizers
Carbon monoxide: Produced by fossil fuels, especially when incomplete combustion of coal and wood occurs 

Air pollution can cause:
Diseases
Allergies
Death
Damage to other living things like animals and food crops
Impaired built environment or natural environment 

Air pollution can also cause inflammation and damage to the blood vessels, leading to blood clots and other heart-related problems. 
Air quality modeling helps to establish a relation between the pollution sources and their impacts. 

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