Traffic related air pollution Video
Assessing Exposure to Traffic Related Air Pollution for birth cohort studies traffic related air pollutionTraffic related air pollution - have
The effect of within-city contrasts is still poorly understood. Results were similar for NO 2 and PM 2. Relative risks were generally small. Associations between natural-cause and respiratory mortality were statistically significant for NO 2 and BS. These results add to the evidence that long-term exposure to ambient air pollution is associated with increased mortality.Navigation menu
Main article: AP 42 Compilation of Air Pollutant Emission Factors Beijing air in after rain left and a smoggy day right Air pollutant emission factors movie tatarin reported representative values that attempt to relate the quantity of relatrd pollutant released to the ambient air with an activity associated with the release of that pollutant. These tdaffic are usually expressed as the weight of pollutant divided by a unit weight, volume, distance, or duration of the activity emitting the pollutant e. Such factors facilitate estimation of emissions from various sources of air pollution. In most cases, these factors are simply averages of all available data of acceptable quality, and are generally assumed to be representative of long-term averages. There are 12 compounds in the list of persistent organic pollutants. Dioxins and furans are two of them and traffic related air pollution created traffic related air pollution combustion of organics, like open burning of plastics.
These compounds are also endocrine disruptors and can mutate the human genes. Air pollution exposure can be expressed for an individual, for certain groups e.
Background
For example, one may want to calculate the exposure to a hazardous air pollutant for a geographic area, which includes the various microenvironments and age groups. This can be calculated [2] as an inhalation exposure. This would account for daily exposure in various settings e. The exposure needs to include different age and other demographic groups, especially infants, children, pregnant women and other sensitive subpopulations.
Search form
The exposure to an air pollutant must integrate the concentrations of the air pollutant with respect to the time spent in each setting and the respective inhalation rates for each subgroup for each specific time that the subgroup is in the setting and engaged in particular activities playing, cooking, reading, working, spending time in traffic, etc. For example, a small child's inhalation rate will be less than that of an adult. A child engaged in vigorous exercise will have a higher respiration rate than the traffic related air pollution child in a sedentary activity. The daily exposure, then, needs to reflect the time spent in each micro-environmental setting and the type of activities in these settings.]
Absolutely with you it agree. I like your idea. I suggest to take out for the general discussion.
In my opinion you are not right. I am assured. I suggest it to discuss. Write to me in PM.
Certainly. I join told all above. We can communicate on this theme. Here or in PM.
I can believe to you :)
Yes, really. So happens.