Some toxic substances which is directly affect on air quality

Sulphur dioxide

Short term exposure can harm the respiratory system making breathing difficult.

it can affect visibility by reacting with Aadhar particle to form age and Eastern culturally important object such as statues and monuments..

Nitrogen dioxide it is also liable for poor air quality.

exaggerate respiratory illness caused age to form by reacting with other A particle causes acid rain  pollutant coastal water.

Carbon monoxide

high concentration in air reduces oxygen supply to critical organs like the heart and brain.
At very high levels it can cause dizziness confusion unconsciousness and even death.

Pm 2. 5
pm 10

Particulate matter pollution can cause irritation of eyes. Nose throat coughing chest tightness and shortness of breath reduced lung function irregular heartbeat asthma attack heart attack and premature death in people with heart and lung disease.

When the particulate matter is we can higher than 10 the effect is severe.