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air purifier is important nowdays. It can help to reduce particle matters, haze
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WHY AIR PURIFIER IS IMPORTANT
INTRODUCTION
OVERVIEW
Outdoor Air Pollution PM 2.5 and PM 10
Indoor Air Pollution VOC Dustmite
HAZE
- Haze is caused when sunlight encounters tiny pollution particles in the air especially PM 2.5.
- More pollutants, more absorption and scattering of light.
- Natural or manmade air pollutant.
- Natural windblown dust, soot from wildfires,
- Manmade Vehicles, industrial fuel burning, manufacturing operations.
- Complex mixture of extremely small particles and liquid droplets.
- Size of particles linked to their potential for causing health problems.
- PM10 inhalable coarse particles, 2.5~10 micrometers. Eg, near roadways and dusty industries.
- PM 2.5 fine particles, smaller than 2.5 micrometers. Eg, forest fires, gases from power plants, industries.
- Premature death in people with heart or lung disease, aggravated asthma, increased respiratory symptoms such as irritation of airways, coughing or difficulty breathing.
PARTICULATE MATTER (PM)
Indoor air is 2-5 times polluted than outdoor air!!!!
INDOOR AIR POLLUTION
Is outdoor air quality better than indoor air quality?
VOC
- Volatile organic compounds are organic chemicals that have high vapor pressure in room temperature.
- Large number of molecules evaporate to surroundings.- Harmful VOCs typically not acutely toxic, but have
compounding long-term health effects.- Major manmade VOCs: Protective coatings, paints, CFCs,
methylene chloride.- Newly furnished buildings or furniture.
DUSTMITE
>10micrometer
<10micrometer
Refurnished buildings
CONCLUSION
SAVE OURSELVES, GET A BETTER AIR QUALITY
THERE IS NO DUPLICATE LUNGS
Stacy Simon. (2013). Why Lung Cancer Strikes Nonsmokers October 28, 2013 Source: http://www.cancer.org/cancer/news/features/why-lung-cancer-strikes-nonsmokers
Environment Protection Agencyhttp://www.epa.gov/airtrends/aqtrnd95/backgrnd.html
http://www.airnow.gov/index.cfm?action=aqibasics.particle
http://www.red.fm/haze/haze-situation-in-penang-getting-worse/
Clarissa Sebag-Montefiore. (2011) CHINA: Pollution Real if not Official December 19, 2011 Source: http://www.globalissues.org/news/2011/12/19/12264
REFERENCE