The impact of pollution depends on our health, the concentration ofpollutants in the air, duration of exposure, and the importance ofphysical effort that we do.
These four factors are very important in the accurate assessment ofhealth risks related to pollution in an individual. And this last point is particularly sensitive in areas where recreational sport and physical activity are numerous and the most fragile children present.
Major Health Consequences From Diesel & Gazoline
Air pollution is causing symptoms such as difficulty breathing, cough, sore throat, headache, eye irritation. It can trigger asthma attacks in people with asthma or lower respiratory capacity in children.
Air pollution can also trigger cardiovascular problems, such asmyocardial infarction and to a lesser extent, angina or heart rhythm disorders. In some cases it can lead to the occurrence ofpremature deaths.
Less is known about the effects of pollution in the long term (10-20years). However, epidemiological studies conducted in the United States have shown that people living in polluted cities die earlierthan in less polluted cities, including lung cancer. And, includingepidemiological studies in the 1990s in France show that air pollution may affect the health of humans and this at any time,even at levels below the immission thresholds warning.
These four factors are very important in the accurate assessment ofhealth risks related to pollution in an individual. And this last point is particularly sensitive in areas where recreational sport and physical activity are numerous and the most fragile children present.
Major Health Consequences From Diesel & Gazoline
Air pollution is causing symptoms such as difficulty breathing, cough, sore throat, headache, eye irritation. It can trigger asthma attacks in people with asthma or lower respiratory capacity in children.
Air pollution can also trigger cardiovascular problems, such asmyocardial infarction and to a lesser extent, angina or heart rhythm disorders. In some cases it can lead to the occurrence ofpremature deaths.
Less is known about the effects of pollution in the long term (10-20years). However, epidemiological studies conducted in the United States have shown that people living in polluted cities die earlierthan in less polluted cities, including lung cancer. And, includingepidemiological studies in the 1990s in France show that air pollution may affect the health of humans and this at any time,even at levels below the immission thresholds warning.
The Real Pollution
Diesel type vehicles are strongly emitting nitrogen oxides and fine particles. In fact, diesels emit 30 to 100 times more particles than gazoline vehicles, which constitutes 90% of particulate emissions from all vehicles!
The composition of particles that are present in the atmosphere is complex to determine since they result from mixtures ofsubstances and aggregates whose origin, particle size and chemical composition vary with time and environment.
This allows to identify carbon compounds or minerals from land-based anthropogenic (metals, salts, nitrates, sulfates, organic compounds: polycyclic aromatic hydrocarbons (PAHs)).
The addition of additives in diesel fuel to make it more efficient is also responsible for the toxicity of the particles. Sulfates and carbon are the main constituents of the particles. In addition, those issued by the various sources are modified during their passage through the atmosphere. For example, a carbon particle originaldiesel 0.1 micrometers (microns) can agglomerate with other particles to be coated and nitrates and sulfates from the chemical transformation of gaseous pollutants.
Diesel type vehicles are strongly emitting nitrogen oxides and fine particles. In fact, diesels emit 30 to 100 times more particles than gazoline vehicles, which constitutes 90% of particulate emissions from all vehicles!
The composition of particles that are present in the atmosphere is complex to determine since they result from mixtures ofsubstances and aggregates whose origin, particle size and chemical composition vary with time and environment.
This allows to identify carbon compounds or minerals from land-based anthropogenic (metals, salts, nitrates, sulfates, organic compounds: polycyclic aromatic hydrocarbons (PAHs)).
The addition of additives in diesel fuel to make it more efficient is also responsible for the toxicity of the particles. Sulfates and carbon are the main constituents of the particles. In addition, those issued by the various sources are modified during their passage through the atmosphere. For example, a carbon particle originaldiesel 0.1 micrometers (microns) can agglomerate with other particles to be coated and nitrates and sulfates from the chemical transformation of gaseous pollutants.
0 comments:
Post a Comment