Dredging the Hudson River
For the past year, the subject of polychlorinated biphenyls in the Hudson River and what should be done about them has been discussed by politicians and residents all over the capital region. Often the top story on the local news, the front page headline of the newspaper, the subject of a special on television, or the reason for a town meeting, dredging has become a much debated topic. With all the information being exchanged and opinions published, it is easy for the average person to become confused. In an attempt to make things clear, the following report defines dredging, PCBs, and presents a short discussion of each side of the Hudson River dredging debate.
POLYCHLORINATED BIPHENYLS
Webster's Dictionary defines polychlorinated biphenyls (PCBs) as any of several compounds that are produced by replacing hydrogen atoms in biphenyl with chlorine, having various industrial applications and are poisonous environmental pollutants that tend to accumulate in animal tissue. They have a high resistance to excessive temperatures and do not disingrate in water. Because of these qualities, they can be useful in paints, lubricants, and most commonly, as a dielectric in capacitors.
Unfortunately, PCBs are hazardous to human and animal health, as well as to the environment. In studies published by the Agency for Toxic Substances and Disease Registry (ATSDR), the following health concerns are related to the ingestion of PCB's in people:
Reproductive functions may be disrupted by exposure to PCBs.
Neurobehavioral and developmental deficits occur in newborns and through school-aged children who had in utero exposure to PCBs.
Liver disease and diabetes, and effects on the thyroid and immune systems...
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"EPA outlines dredging plan." MSNBC. 12 December 00. 25 February 2001. http://www.msnbc.com/local/wnyt/77805.asp
Hudson Voice. "Web Site." 27 February 2001. http://www.hudsonvoice.com
Huskie, Stephen J. "Dredging channels water courses' economic, environmental effects." American City Business Journals Inc. 19 October 1998. 18 February 2001.
"Polychlorinated biphenyls." Webster's Dictionary.
"Survey says Hudson Valley residents support dredging of PCBs in river." Capital District Business Review. 16 November 2000. 26 February 2001.
United States. Agency for Toxic Substances and Disease Registry. Public Health Implications of Exposure to Polychlorinated Biphenyls. 13 August 1999. 18 March 2001.
United States. Environmental Protection Agency. PCBs 101- A PCB Primer.
15 December 2000. 27 February 2001.
This is an important topic. It affects the overall health of the population surrounding the Chesapeake Bay, as we eat from it quite often and it can be used as a water source. The chemicals being released into the water are from coal-burning factories and runoff, which can be helped, but it’s almost impractical in this day and age to spend the amount of money required to do so without the technology that can guarantee a fix.
In this project we explored the oil industry along the Delaware River, and considered its social, economic, environmental implications in local, regional, global contexts. Clearly the oil industry along the Delaware River has prospered the local, regional, and in some sense global economy. It has also, however, brought about social, environmental issues, positive or negative, directly or indirectly. We are trying to view the oil industry along the Delaware River in a dialectical way, to give the pros and cons, because it is really difficult to make a definite conclusion.
Kenneth Schiff wrote an editorial for the Marine Pollution Bulletin in 2014 where he asked environmental scientist about the effectiveness of the Clean Water Act. Three topics were discussed to support their approval; The Cuyahoga River, Platform A and declines in marine life. The Cuyahoga River in Ohio had hit a point 1969 where there was so much oil on the surface of that it caught on fire and now it has been deemed as fishable by the Ohio Environmental Protection Agency, thanks to the Clean Water Act. Platform A was located in Southern California. In 1969, an explosion occurred, causing 100,000 barrels of oil to devastate beaches along the Pacific Ocean and kill thousands of animals located in this region. Also discussed was the effects of hazardous substances, in this example DDT, on marine life. The use of this pesticide caused brown pelicans and California sea lions to experience intense decline in population- thanks to the Clean Water Act being followed by much research, restrictions and bans were able to be placed on these chemicals, allowing these populations to flourish once more. Within this editorial, there is also many who state that this Act has not been effective enough. One big argument is that the EPA has a list of pollutants that has not changed since the 1970’s yet in the last 40 years, there has
EPA. (2009, December 29). Retrieved January 15, 2011, from Toxicity and Exposure Assessment for Children's Health: http://www.epa.gov/teach/
The birth of a healthy child is a blessing. The prenatal period is susceptible in terms of embryonic development, and some exposures to teratogens can have adverse and lifelong affects on a baby. Although physical outcomes resulting from teratogen exposure cannot be reversed, with hope, some of the behavioral effects of Teratogens may have a decreased impact on the life of the child, though all mothers should pay special attention to the health of their child throughout their pregnancy.
Then the documentary tackles Puget Sound. The Duwamish River is the largest hot spot in the nation. In 2001, the Duwamish River was classified as a “Super Fund” site. This is given to a site that will receive federal assistance for clean up. But yet, it may be too late. Puget Sound in contaminated with PCP, lead and mercury. The threat comes from the giant industrial polluters of old and from chemicals in consumers’ face creams, deodorants, prescription medicines and household cleaners that find their way into sewers, storm drains, eventually into America’s waterways and drinking water.
During recent years, numerous newspaper and magazine articles have suggested that humans may be at risk because small amounts of well known environmental contaminants, such as dioxin, PCBs and DDT, can affect hormone levels. Hormones are produced by the endocrine system as regulators of biological function in target organs. Because hormones play a critical role in early development, toxicological effects on the endocrine system often have an impact on the reproductive system. The term endocrine disruptor is used to describe chemicals that can mimic hormones and may either enhance or counteract their effects. It has been suggested that these hormone changes can, in turn, lead to a variety of health problems including cancer, decreased fertility, and abnormalities in newborns.
The Great Pacific Garbage Patch is the largest garbage dump in the world. According to estimates made by experts, the patch holds approximately three and a half million tons of garbage. Majority of this garbage is made of plastic. This waste is a threatening problem to the patch’s surrounding wildlife. Many animals are caught in the floating pieces of trash and it is the cause of the deaths of about one million birds and about one hundred thousand other sea animals. Due to the oceans nature and constant moving currents, the trash is also constantly moving. Therefore the size of the patch never stays the exact same. However, scientists believe it be approximately two times the size of Texas. The plastic is mostly broken down from larger materials into small pieces. The patch has been referred to as one scientist as a, “plastic soup”. This garbage poses such a threat mainly because it does not biodegrade. These plastics will be in the ocean essentially forever. Many plastics also contain chemicals, and absorb other chemicals and pollutants they become exposed to. These newly absorbed toxins are then leaked and distributed back into the ocean over time. The chemicals can directly enter the bodies of the animals which consume them. A study was being conducted by scientists of the fish that inhabit the area around the patch. What the researchers found inside the belly of one fish (that was no larger in size than that of a finger), was eighty four small fragments of plastic. It does not take scientists to recognize the impact of this problem, Zach Gold, who is sixteen, is from Santa Monica California. Zach enjoys s...
Hooker admits to burying about 21,800 tons of various chemicals in the canal. There are at least twelve known carcinogens in the canal including benzene which is well-known for causing leukemia in people (Gibbs 22). The air, soil, and water tests have found chemical migration throughout a ten block residential area. The extent of the chemical migration is still unknown.
When it comes to the children levels of lead in the body can affect behavior problems, the learning capabilities, growth, hearing problems and anemia. If lead is digested it can cause seizures and in worst-case scenarios of death. Short-term exposure to high levels of lead can cause abdominal pain, and vomiting. Whereas chronic low-level exposure can cause retarded cognitive and intellectual development in children. Infant, young children and fetus are more sensitive to toxic effects of lead, especially in regard to the damages to their central nervous system. The affect that lead has on animals is that it inhibits their ability to synthesize red blood cells. The affect that lead has on plants is that lead pollution coats the surface of the leaf and reduces the amount of light reaching it. This results in stunting the growth or killing the plants by reducing the rate of photosynthesis, inhibiting respiration, encouraging an elongation of plant cells influencing root development. As for the affect on micro- organisms is that lead at the concentrations found near roadsides can wipe out the bacteria and fungi on surfaces and soil, as microorganisms play a huge part in the food
Lead and lead compounds can be highly toxic when eaten or inhaled. Although lead is absorbed very slowly into the body, its rate of excretion is even slower. Thus, with constant exposure, lead accumulates gradually in the body. It is absorbed by the red blood cells and circulated through the body where it becomes concentrated in the soft tissues, especially the liver and kidneys. Lead can cause damage in the central nervous system and apparently can damage the cells making up the blood-brain barrier that protects the brain from many harmful chemicals.
Jessica Knoblauch, an author for the Environmental Health News, writes about the toll plastic has on the environment, "the process of creating plastic can produce biological effects in a range of wildlife species, crippling the local ecosystem." All forms of plastic are created using oil. Oils are refined, mixed with poisonous chemicals, and cooked at high temperatures in order to produce items. This process produces toxic byproducts and greenhouse gases, reducing our air quality and can disrupt the
Eliminate sources of dioxin and other persistent organic pollutants (POPs) including PVC, and ensure legislation to prevent toxic waste dumping.
Household chemicals were created for a reason, but that doesn’t mean they can’t be harmful to your health. For instance, pesticides used on household lawns are now proven to cause neurological disorders. These include depression, mania, learning disorders, A.D.H.D, immune system defects and memory problems. Not proven yet, but the same chemicals play a big part in leading research for the c...
Most people fear that BPA will have negative effects on their health, such as reproductive issues and cancer.... ... middle of paper ... ...2014. The 'Standard' of the 'Standard'. http://www.onlineeducation.net/bottled_water/water_full.jpg>.