Monday, February 25, 2013

Tracing Pollutants


Read this article and answer the questions:

1. What effect has air pollution has on our health? What are the sources?
2. Do the seasons have an effect on the toxicity?
 

12 comments:

  1. 1. Air pollution by aerosols has been known to have negative effects on asthma and other breath-related issues. The particles are breathed in like regular air and get trapped in the respiratory system. These particles come from many sources, both natural and manmade, including things like windblown material from the ground, and construction.

    2. The seasons can have an affect on what particles are released into the air, and because the particles are what determine toxicity, the seasons do indirectly have an effect on toxicity.

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  2. 1. Air pollution is dangerous to our health and can cause asthma, heart disease and premature death. The sources of these pollutants are aerosols, particulate emissions from vehicles, wood burning, and residential cooking.

    2. The seasons have an effect on the amount of particulates in the air which can affect the toxicity. For example, there may be more particulates in the air in the summer due to dry conditions and less particulates in the winter due to precipitation.

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  3. Air pollution can have harmful effects on our health, and can cause asthma, and many other heart diseases due to small particles being breathed in. The particles can come from vehicle emissions, industry pollutants and many other sources.

    there are seasonal changes in the amount of particulates, in the summer there may be more because it is dry, opposed to a wet season such as winter that limits the particulate. the more particulate, the more toxic.

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  4. 1. Although it may be effecting us slowly, air pollution has a signification effect on our health. Air pollution causes human irregularities such as asthma and heart disease and could even be as severe as death. The sources of air pollution mostly come from aerosols, vehicle particulate emissions, and particulate variations through the seasons.

    2. The seasons do have an effect on the amount of particulates in the air and toxicity levels. Seasons have different particulate counts due to certain climatic variations that occur. For instance, there could be more particles in the air due to the dry summer conditions as opposed to the wet winter ones.

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  5. 1. The effect that air pollution has had on our health has been dangerous to our health, and because it can cause asthma, heart disease and even death. The sources of these pollutants are things like aerosols, emissions from vehicles, burning wood, and everyday cooking.

    2. Yes, the seasons do have an effect on the toxicity of the pollution. For example, there might be more particulates in the air in the summer because of the dry conditions, and there would be less particulates in the winter because of precipitation.

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  6. 1) Air pollution has an increasingly evident effect on our health. There are many issues surrounding pollution, including asthma, heart problems and worse. Industry, traffic, and aerosols are the biggest contributors.

    2) Drier conditions allow for more article-saturated air, so normally summer moths equate to higher particle amounts.

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  7. 1. They can cause respiratory diseases such as asthma, and also heart disease, and death. It can be caused by man made sources, such as burning wood, and also by natural sources.

    2. Yes, because it stated in the article that samples are collected in both summer and winter to account for seasonal differences.

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  8. 1- Air pollution has significant impacts on our health. It has increased asthma, heart diseases and can sometimes be fatal for certain people. The main sources would be from motor vehicles' emissions, pollutants, other chemicals used daily...

    2- The seasons do have an effect on the toxicity, as the particulates are not the same, or not the same quantities (numbers). Although it is not direct, the effect is present.

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  9. 1) Air pollution as an effect on our health. These effects include heart problems, asthma, and other events that can have fatal causes. Sources such as factories, vehicles, and other pollutants including chemicals have masses effects on this

    2) Yes seasons do have an effect. Not only was it stated that samples are collected in both but also because the amount of usage of things that pollute such as cars

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  10. 1) Air pollution as an effect on our health. These effects include heart problems, asthma, and other events that can have fatal causes. Sources such as factories, vehicles, and other pollutants including chemicals have masses effects on this

    2) Yes seasons do have an effect. Not only was it stated that samples are collected in both but also because the amount of usage of things that pollute such as cars

    ReplyDelete
  11. 1. Scientists at UC Davis have developed a system to rank the toxicity of different pollutants. Prior research has shown that "air pollution containing fine and ultrafine particles is associated with asthma, heart disease and premature death." The new study indicates that particulate matter from cars, wood burning, and residential cooking had the most toxic effects in a Fresno, CA study.
    2. The article did not say specifically whether the seasons had an effect on toxicity. It may be inferred though that pollution from wood burning would be higher during the colder months. Since wind kicks up sea salt and natural particles from the earth, pollution would also be worse during windy seasons.

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  12. 1. Air pollution can cause many different health problems in children and adults. The article states a range of asthma to heart disease, to premature deaths. Air pollution can come from many different sources like wind blown particulates, sea salt particulates,and also toxic chemicals.

    2. The article does not directly state that weather affects toxicity but we can infer that because they collected samples in summer and winter to account for the seasonal atmospheric differences if there were some.

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