A Brief Note On Pcbs And Its Effects On Human Health

From 1947 to 1977, these two plants legally discharged from 500,000 to 1.5 million pounds of PCBs into the Hudson, and unknowingly saturated the bedrock beneath both sites with at least that much again. There are PCBs in Hudson River water, biota, and sediment from Hudson Falls to New York City - 200 miles that comprise the nations largest Superfund site. Pure PCBs are oozing out of the bedrock to this day, constantly recontaminating the river and over 300,000 pounds remain concentrated in bottom sediments of the river today. The spread of PCBs throughout the Hudson River and the food chain, which it supports, has created one of the most extensive hazardous waste problems in the nation. Polychlorinated biphenyl’s (PCBs) are a group of synthetic oil-like chemicals (therefore insoluble in water) of the organochlorine family. Until their toxic nature was recognized and their use was banned in the 1970s, they were widely used as insulation in electrical equipment, particularly transformers. Reputable chemists have since concluded, “it was probably a mistake ever to make or use PCBs.” These are serious poisons, which have been shown to cause damage to the reproductive, neurological and immune systems of wildlife and humans and are known to cause cancer. Exposure has also been linked to behavioral damage. Specifically, because PCBs in the body mimic estrogen, women of childbearing age and their infants are particularly susceptible

The problem with plastic ending up in the ocean is that marine life is being harmed by the presence of it. A study done on the harbor seals in the Netherlands found that more than 12% had plastic in the digestive system (California Coastal Commission). The list of affected species indicates that marine debris is affecting a significant number of species. It affects at least 267 species worldwide, including 86% of all sea turtle species, 44% of all seabird species, and 43% of all marine mammal species (Save our shores). The problem is underestimated because the marine life that ingests plastic or dies from entanglement often goes undiscovered due to the vastness of the ocean, as they either sink or are eaten by predators before they are discovered (Plastic Debris). The potential harm from ingestion of plastics is not restricted to seabirds. Plastic bags drifting on ocean currents resemble the prey of turtles. There is evidence that their survival is being hindered by plastic debris with young sea turtles being vulnerable (Ocean pollution). Over the past 20 years polychlorinated biphenyls (PCBs) have polluted marine food webs at an increasing rate, and are prevalent in seabirds. Though their adverse effects may not always be apparent, PCBs lead to reproductive disorders, increase the risk of disease and alter hormone levels. These chemicals have a detrimental effect on marine organisms even at very low levels and plastic pellets could be a route for PCBs into marine food

Between 1947-1977 General Electric (GE) dumped 1.3 million pounds of PCBs in the river polluting it and making it hazardous. Polychlorinated biphenyls, or PCBs, are used as an insulator and a fire preventer. They also can cause illnesses, such as cancer. If the fish take in the PCBs and then we eat the fish, we can get sick.

Bisphenol A (BPA) has been commercially used since 1957, and has been employed to make certain plastics and epoxy resins. Bisphenol A has been made into a variety of common consumer goods, such as water bottles, CDs and DVDs. While in epoxy resins that contain Bisphenol A are used to line water pipes, coatings on the inside of beverage cans, and in thermal paper such as sales receipts. A research conducted by the Environmental Health Perspective has said that from the years 1992-1999 Bisphenol A has rose in human urine. In which has been resulted by the Environmental Health Perspective that the cause of rise of Bisphenol A in human consummation is the use of consumer goods such as the lining of beverage drinks, and certain water bottles (Environmental Health Perspective study WEB 2). Also with the rise of littering in the world such products are being thrown into lakes, ponds, and the oceans which is resulting in contamination. Which is greatly affecting the marine life, environment, and human life. So ultimately this experiment is being conducted to display the harmful physical effects of Bisphenol A on marine life, and if it can be later translated

Often, toxic substances are being drained into the air, waterways, and undergrounds wells. According to the report by Environmental Protection Agency (EPA), over 60 million pounds of deadly chemicals are produced by industries in Florida. Notably, Florida’s water has been suffering mercury contamination until the state’s department of migration issues a circular regularly for regulations of eating freshwater fish in the region (Florida Fish and Wildlife Conservation Commission). In fact, such metals emanate from coal combustion’s emissions which run into water bodies. Not to mention, pesticides and herbicides utilized by government and homeowners pollute the environment (Florida Fish and Wildlife Conservation Commission). Indeed, all chemicals released into the atmosphere find themselves in rivers.

The Bloomington area has numerous locations of PCB contamination, Monroe County has declared three sites; Lemon Lane Landfill, Neal’s Landfill, and Bennett Stone Quarry. Although, there are many other sites including the Illinois Central/Quarry Springs, Winston-Thomas Sewage Treatment Plant and surrounding areas. These areas include where residents received PCB-contaminated sludge in their yards since they were being told it was “organic” sewage sludge from the Winston-Thomas Treatment Plant according to Linda Greene from the Bloomington Environmental Health Project (Greene, 1995). Officials determined that Bloomington will not be free from toxic industrial compounds for a minimum 30 years even with the great cleanup that has led to the abstraction of most of the ground-level contamination according to Sehvilla Mann from the Indiana Public Media 2013. As you can imagine there are many

If the pollutants are altering body cells certain parts of the body may not grow properly and more fat would be produced where it doesn’t belong. When these “…chemicals [are present] in the mom’s blood, such as DDE (a by product of the now widely banned pesticide DDT, which lingers in the environment decades later, and is still found in small amounts in many foods such as meat, dairy, and fish)” can alter the development of the fetus and cause problems later in life (1). The children of whom mothers’ had this chemical in their blood while pregnant are even more at risk for obesity without even having bad eating habits. Equally important are the affects it has on children's health and learning.

Polychlorinated biphenyls (PCBs) are a group of manmade chemicals. They are oily liquids or solids, clear to yellow in color, with no smell or taste. Over the years PCBs have been released into the environment through spills, leaks from electrical and other equipment, and improper disposal and storage. It is estimated that more than half of the PCBs produced have been released into the environment. Once in the environment, PCBs can be transported long distances and they bind strongly to soil and sediment so they tend to be persistent in the environment. They have been found in air, water, soil, and sediments throughout the world. How this will impact the world is that PCB’s can enter the body by eating or drinking contaminated food, through

BPA can do a lot of damage to your central nervous system. Exposure to Bisphenol A in utero and during early life can disrupt a gene called KCC2. KCC2 regulates your brain cell growth and it helps connect your brain to other neurons. When this gene is damaged it can destroy a part of your brain called the hippocampus.

There are 75 PCDD congeners, differing in the number and location of chlorine atoms and in

Air pollution can be undoubtedly harmful to pregnancy. Substances such as carbon monoxide, ozone, nitrogen dioxide, benzene, emissions from solid biomass, and nitroarenes all contribute to air pollution. Studies done in North Carolina, California, and East India all conclude the same thing; air pollutants do affect the health of babies during pregnancy. The most severe affects from these toxins include cancer, short-and-long-term morbidity, and stillbirth. Still damaging, yet less traumatizing effects include low birth weight, small for gestational age, and preterm birth. PM2.5 is particulate matter in the air. One study shows it reduces birth weight by 3.1 g (Gray, 2013). Because most of air

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

The widespread use of BPA in many common household items has a detrimental effect on women’s overall and reproductive health. Although BPAs prove to have adverse health effects for all, the negative affects it has on women seem to have a more prominent research background. Without a greater understanding of the adverse effects of BPAs on the female populace--including the alteration of estrogen and progesterone levels, and influence on mental and physical health--there is little that can be done to subdue the rampant use of BPAs in today's world.

Nakamoto et al. conducted a cross-sectional study on over 2000 Japanese women and men exposed to background, rather than occupational or war-time, levels of dioxins including PCDDs, PCDFs, dioxin-like PCBs. Dioxins in this study were likely present because of combustion of chlorinated materials and older manufactured electronics components. The study participants lived in urban areas, farming and fishing villages for at least ten consecutive years and had no concomitant occupational exposure to dioxins. They had a mean age of 43.5 ± 13.6 years in men and 45.3 ± 14.0 years in women. Participants volunteered

With the combination of polymers that don’t biodegrade and mass overproduction, companies are harming the environment in severe ways. Plastic, a material seen everywhere, is a polymer made from oil. It is mass produced to make everything from shampoo bottles to automobiles and does not biodegrade. When it is eventually thrown out, the waste usually finds it way into the ocean, where it is either buried under sediment or eaten by marine life (Weisman 287-295). Creating a material that will ultimately kill marine life will undoubtedly wreak havoc on the