There are many factors, when working in the construction and trades industry, that can contribute to poor air quality.
Indoor air quality can be negatively affected by factors such as:
- Chemicals
 - Dusts
 - Airborne contaminants
 - Lack of airflow
 - Solvents
 - Smoking
 - Dust or dirt in ductwork
 - Improper ventilation
 
Outdoor air quality can be negatively affected by factors such as:
- Air pollution
 - Pollen
 - Dust
 - Industrial pollutants
 - Vehicle exhaust
 - Forest fires
 - Extreme heat
 - Extreme cold
 
Impacts of Poor Air Quality
Health effects of poor air quality include, but are not limited to:
- Coughing
 - Mucus secretion
 - Infection
 - Reduced lung function
 - Lung cancer
 - Cardiovascular disease
 
Improving Air Quality
Improving air quality can keep workers safe at work. Here are a few ideas on how to improve air quality in your work environment:
Indoor Air Quality
To improve indoor air quality, the following measures can be taken:
- Keep a healthy humidity level
 - Prohibit smoking indoors
 - Dust and clean area regularly
 - Use natural air purifiers like indoor plants
 - Use eco-friendly cleaning products
 
Outdoor Air Quality
To improve outdoor air quality, the following measures can be taken:
- Reduce vehicle emissions by prohibiting idling on site
 - Ensure company vehicles receive regular emissions testing
 - Where possible, limit use of chemicals
 

                
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