Thursday, November 1, 2012

thermal pollution


Summary: This article, called thermal pollution was posted january4, 2007, and by an unknown author. The article is reliable hence the fact it was posted on a professional website and it give facts on what thermal pollution is doing to the environment and the problems that it is causing. It is also a topic that is still currently happening and not getting any better in our modern society.

The article starts of by giving a definition of what thermal pollution is, and that is the degradation of water quality by any process that changes ambient water temperature. It also talks about what bodies of water it is normally associated with such as streams, rivers, lakes, and oceans. The article also tells about how thermal pollution often happens when humans are producing electricity, but it can also be from the removal of vegetation.

The article goes into deep detail about what causes thermal pollution and how it happens. It talks about how energy can come from two sources, a direct source, which would be the burning of wood in a fireplace or it can be from the conversion of heat from a heat engine such as turbines and steam engines. It also talks about how much energy is tuned to fuel or a fuel source (30-40% of energy) and what happens to what is left over. Afterwards it tells you about how water is transported to facilities that use water as a coolant and gives a specific example, The San Onofre Nuclear Generating Station between Los Angeles and San Diego, California, and how much water is consumed and transported (2,400 million gallons per day and830, 000 gallons per minute). There is also a good graphic of how the water temperature is distributed.

Next it talks about the effects it has on the environment. A primary effect that was stated in the article would be direct thermal shock. Some others are changes in dissolved oxygen and redistribution of organisms in a local community. The article say that they are trying to stop fish and other aquatic organisms from getting stuck and killed in the pipes by gradually increasing to temperature of the water of the heat treatment. Although they are trying to stop the wildlife from getting killed, their plan, ironically, is causing more problems. That is because those changes in temperature change the reproduction of the organisms making them more susceptible to disease. The article also states how if the water is colder it can then brake down organic material faster and therefore reduce oxygen levels. So that gives the problem of not solving thermal pollution by adding cold water to the mix. The article also stated how some good came out of thermal pollution, believe it or not. Some organisms like coral adapted to have a higher thermo tolerance.

Finally the article talks about the abatement of organisms that is caused by thermal pollution. So far the only immediate effects seen are the mortality of plankton. Some other possible abatement can be caused by nuclear power plants and their steam towers, which can cause meteorological changes.

Opinion: I think that thermal pollution can be a serious problem when in local area, especially one were a lot of endangered species live or a habitat that select organisms need to live and survive. It can also cause other local issues but it can also help organisms and commercial companies by increasing reproductive rates of certain fish and increase thermo tolerance for other organisms. On a world wide scale I do not think that thermo pollution will be a problem unless we make so many energy plants that it will happen everywhere. I, myself have no personal connection to this topic but I’m sure others will, especially those who specialize on this topic.

1-Should we try to dump the hot water to where commercial fisheries fish to help with a supply of food?

2- If more people move up north, should we limit the amount of people who can live up there so electrical plants aren’t numerous and start pumping hot water into the cold?

3- Should we try to use hot water treatments on aquatic organisms in labs to get the same thermo tolerance seen in coral and then try to breed them as a new species for commercial gain?

 

4 comments:

  1. Opinion:
    I think that we are fine with what we are already doing pertaining to thermal pollution, because of how little it effects the environment. Some stenothermic organisms die, but other organisms adapt and become more fit because of this. The cooling towers are generally working and the environment is not really suffering, so I think that we should continue as we are. While pollution normally effects populations like we learned in class, this can benefit them by giving them more genetic diversity which leads to a higher chance of survival.Also at home, we benefit hugely from the use of this energy, as some of it is used to heat our homes.

    1. Should we limit the amount of thermal pollution?

    2. Are the cooling towers the way we should continue to prevent thermal pollution?

    3. Do you think the environment is benefiting from this or is being harmed and why?

    ReplyDelete
  2. Here is a link to a narrated powerpoint on how thermal pollution affects sea life and how people can stop this tragedy. This video also opposes industry dumping in rivers and oceans to help stop the pollution.

    http://www.youtube.com/watch?v=cCAGwHawRXk&feature=related

    ReplyDelete
  3. 1)Should we try to dump the hot water to where commercial fisheries fish to help with a supply of food?

    answer: I think that we shouldn't dump the hot water in an area with high fish population because they might not adapt well and we could see a sink in population in a lot of fish species. I think that we should just control the amount of thermal population so that we don't have to do this

    2) 2- If more people move up north, should we limit the amount of people who can live up there so electrical plants aren’t numerous and start pumping hot water into the cold?

    answer: I think that we need to limit the amount of electrical plants in the north instead. The people moving there isn't the problem its the plants. If we create less plants than maybe we can keep the thermal pollution down.

    3)3- Should we try to use hot water treatments on aquatic organisms in labs to get the same thermo tolerance seen in coral and then try to breed them as a new species for commercial gain?

    answer:I think that is a bad idea because we need the organisms to adapt on their own not be thermal treated fro commercial fishing. By doing this we are messing with the balance of the ecosystem and we could cause something to collapse.

    ReplyDelete
  4. I Picked Professor Mark Z. Jacobson. I picked him because he majored in Science pollution. He has also won several awards for his scientific lectures. He has also published 2 textbooks about Air and ozone pollution. He served on the Energy Efficiency and Renewables advisory committee to the U.S. Secretary of Energy.

    Here is the email.

    Hello,

    We are 9th graders at Hatboro Horsham High School. We are doing a Blog for Environmental Science and we were wondering if you could comment on our blog for us. Its About Thermal Pollution and since you have a background on it, we thought you would be perfect to comment.

    Here is the link..
    http://sciencepeoplez.blogspot.com/2012/11/thermal-pollution.html

    Thank you,
    Shannen

    ReplyDelete