outdoor air quality


92% of the world population lives in places where the WHO air quality guidelines levels were not met. Air pollution has become a major environmental and public health problem for everyone. There is currently, a real need among citizens to understand how to live in an environment that pollution is making more and more hostile to good health and well-being.

Major Pollutants: Particulate Matter (PM10 & PM2.5), Carbon Monoxide (CO), Ozone (O3), Nitrogen Dioxide (NO2) and Sulfur Dioxide (SO2).

 

Major SOURCES OF AIR POLLUTION

 
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Health consequences of Air Pollution

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indoor air quality


We spend approximately 90% of our time indoors, at home, at school, at the office. However, some research has shown that the air within homes and other buildings can be more polluted than the outdoor air. By monitoring air quality inside, we can suggest solutions, scenarios to make air quality better. 

 
 

Air pollution sources & health effects

 
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Potential long-term health effects: 

  • Rhinitis
  • Respiratory disease
  • Cancer
  • Death

 

Potential Short-term health effects:

  • Eyes & throat irritation
  • Allergies
  • Asthma
  • Fatigue
  • Headaches
  • Congestion
 
 

How the levels of CO2 and VOC concentrations

can affect your performance?

 
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A study done by the Department of Environmental Health of Harvard, SUNY Upstate Medical School, and Syracuse University showed that workers, exhibited significantly lowered cognitive functioning, after spending a day in a conventional office environment featuring high concentrations of carbon dioxide and volatile organic compounds. Whereas in conditions set to simulate a green building, or in a green+ building with enhanced ventilation, cognitive performance was higher. Carbon dioxide levels, in particular, seemed to have a major effect. Even for moderate level of CO2 (~945 ppm), cognitive function scores were 15% lower.

 

 
 

Gas leak


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Gas leak can pose a significant hazard in each placed that store chemical or gas (industrial environment, residential homes, factories, pipelines...). Methane is an example of a colorless, odorless and extremely inflammable gas that have caused fatal explosions. Even if the gas is not inflammable or toxic, at a high concentration, it may displace oxygen in a confined place and decreased oxygen can cause suffocation, loss of consciousness, headache, dizziness, weakness, nausea vomiting and loss of coordination.

 

 
 
 

In-cabin Air QUality


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It is not a well-known fact but pollutant levels inside your car are often higher than alongside the road. Indeed, cars take emissions from surrounding vehicles and recirculate them. 

In-car pollution depends on multiple factors such as the traffic, the age of your car, your speed, ventilation, the type of car ahead of you, etc. Because of that, it is not always easy to know if opening a window or putting on the ventilation will improve air quality inside your car, as it can reduce some pollutants while increasing others. By monitoring in-car air quality, you will be able to know how to reduce your exposition to pollutants. 

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