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Negative effects of plastic pollution
Plastic and its effect on environment
Plastic and its effect on environment
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Introduction
The main theme of the book is that we expose ourselves to dangerous chemicals from using common household products for cleaning and hygienic products. However, the real danger of using these chemicals is that most of our society doesn’t know the potential health effects and outcomes one is facing. Environmental health addresses all the physical, chemical and biological factors external to a person, and all the related factors impacting behaviors. It encompasses the assessment and control of those environmental factors that can potentially can affect our health.(World Health Organization). The theme of the book is relevant to environmental health because the authors are assessing their exposure to these dangerous chemicals that are found in the products that we use to continue with our daily lives. They publish their results and find that phthalates, PFOA and PCBs are both dangerous to human health and the environment.
Background
The environmental health problems described in this book are that phthalates, PFOA and PCBs are dangerous chemicals. We are exposed to these chemicals on a daily basis and they are common household products and hygienic products. We are also increasing our exposure levels, which can create negative health effects and affect our environment. The magnitude of the problem is enormous. Everybody uses and are exposed these products on a daily basis.
Phthalates are found in plastic materials. They can cause endocrine disruption, in other words it can affect our hormones. They can also cause damage in the environment. It can harm marine life since we don’t properly recycle throw away plastic materials. PFOA (perfluoroctanoic acid) is a carcinogen. Studies show that it can cause pancreatic canc...
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• Ross, P. R., Jeffries, S. J., Yunker, M. B., Ikonomou, M. G., & Calambokidis, J. C. (2004). Harbor seals (Phoca vitulina) in British Columbia, Canada, and Washington State, USA, reveal a combination of local and global polychlorinated biphenyl, dioxin, and furan signals. Environmental Toxicology and Chemistry, 23(1), 157-165. Retrieved from http://onlinelibrary.wiley.com/doi/10.1897/03-85/abstract?deniedAccessCustomisedMessage=&userIsAuthenticated=false
• Rudel , R. A., Camann, D. E., Spengler, J. D., Korn, L. R., & Brody, J. G. (2003). Phthalates, Alkylphenols, Pesticides, Polybrominated Diphenyl Ethers, and Other Endocrine-Disrupting Compounds in Indoor Air and Dust. Environmental Science and Technology, 37(20), 4543-4553. Retrieved from http://pubs.acs.org/doi/abs/10.1021/es0264596
The premise of Theo Colborns’ research was to find the connection between the rising incidences of cancer and environmental contamination in the Great Lakes region. However, during field and laboratory studies, Colborn discovered that there was no direct link between the contamination and cancer. However, Colborn did find reoccurring patterns of abnormal behavior and deformed offspring amongst the wildlife populations in the Great Lakes region. Elevated levels of polychlorinated biphenls (PCBs), pesticides dieldrin, DDT, lindane and chlordane were found during tissue analysis of the wildlife in the Great Lakes region (Colborn et. Al 1996). These elevated levels were found in offspring of the wildlife who appeared to be healthy. This supported Colborns’ hypothesis that these contaminations disrupt hormones produced by the endocrine system during growth and development, which will then cause physical and behavioral abnormalities in the fetus.
EPA. (2009, December 29). Retrieved January 15, 2011, from Toxicity and Exposure Assessment for Children's Health: http://www.epa.gov/teach/
Environmental Hormone Mimics and Their Serious Health Threats Chemicals affecting human health have been a problem for the past years and have still been a growing problem for our society. Issue 10 is concerned about this problem. It is pointing out the major harms and the reasons for this problem. First, it is talking about the argument that is against these chemicals. After this, an argument that says these specific chemicals do not necessarily have an affect in human health is discussed.
Humans encounter harmful chemicals every day, but it is generally unexpected by the public that products that they use every day, such as water bottles and metal cans, contain ingredients that can pose a threat to their health. Bisphenol A (BPA) is a compound that is widely used during the manufacturing of epoxy resins that provide a protective layer to many food containers, as well as hard, clear plastics (Staples, 1998). BPA leaches from these containers into the food or drink that humans consume on a daily basis (Krishnan, 1993). Several studies have found traces of BPA in over 90% of adult participants, and 99% of school-age children (Calafat, 2008). The chemical is still being used in modern times, despite the research that advises otherwise. Bisphenol A is a dangerous chemical that causes various chronic health problems, such as cancer, as well as sexual abnormalities in both males and females.
Humans are among the many terrestrial mammals affected by the endocrine-disrupting capabilities of bisphenol A. The majority of human exposure comes from consumption of BPA from food products packaged in polycarbonate plastics (Crain et al., 2007). Laboratory studies done on mice indicate that exposure to high concentrations of BPA can cause pregnancy complications, reproductive organ defects, obesity, early puberty, and cancer (reviewed by Flint et al., 2012).
Recently, an uninhabited island in the South Pacific Ocean was found to be polluted with 38 million pieces of plastic that had been carried over by currents (Wang, “No one lives on this remote Pacific island”). The island, dubbed ‘trash island’, is home to diverse animal populations that have all been devastated by the pollution. On the beach, hundreds of birds were seen dead by reporters and scientists. When analyzed, the primary cause of death turned out to be consumption of plastic. When animals ingest plastic, it clogs their stomach and poisons their body with toxic chemicals. These toxic chemicals cause an array of issues, such as reproductive and endocrine problems. Eventually, this leads to death (Knoblauch, “The environmental toll of plastics”). But due to the nature of plastics, it can take hundreds or even thousands of years to completely degrade, meaning that as plastic pollution continues to build up, more places like ‘trash island’ will be discovered. According to conservation scientist Alex Bond, “…[The island] is just an indicator of what’s floating around out there” (Wang, “No one lives on this remote Pacific
Evidence provided to support these claims of human and wildlife harm is largely from laboratory studies in which large doses are fed to test animals, usually rats or mice, and field studies of wildlife species that have been exposed to the chemicals mentioned above. In laboratory studies, high doses are required to give weak hormone activity. These doses are not likely to be encountered in the environment. However the process of bioaccumulation can result in top-level predators such as humans to have contaminants at levels many million times greater than the environmental background levels (Guilette 1994). In field studies, toxicity caused by endocrine disruption has been associated with the presence of certain pollutants. Findings from such studies include: reproductive disruption in starfish due to PCBs, bird eggshell thinning due to DDT, reproductive failure in mink, small penises in alligators due to DDT and dicofol (Guillette 1994, Colburn et al 1996). In addition, a variety of reproductive problems in many other species are claimed to be associated with environmental contamination although the specific causative agents have not been determined. One recent discovery that complicates the situation is that there are many naturally occurring "phytoestrogens", or chemicals of plant origin that exhibit weak estrogenic properties.
As cited by Environmental Protection Agency (EPA) of US, Pb and Pb containing compounds is one of the top 17 chemicals causing greatest threat to human life and environment.1st July 2006 has been official...
Although companies across the globe continue to produce multiple polycarbonate #7 plastic products with BPA, more is being noticed about the adverse health effects to humans can be harmful. Testing on mice has proven that some exposure to BPA can be linked to Cancer and neurological disorders. In countries which have banned the use of BPA in different products, would agree that this chemical is toxic and dangerous. However, as long countries like the United States, who do not currently support banning BPA countrywide due to limited scientific data to back all claims, BPA will continue to be a global issue which continues to be hidden in the dark and a mystery globally
The US Container Recycling Institute estimates that 67 million plastic water bottles are discarded every day, which is enough to wrap around the planet 149 times each year. Therefore, plastic water bottles should be banned from public use. The usage of water bottles should be suppressed because they are incredibly dangerous, wasteful, expensive, and rarely recycled. Researchers have stated that plastic bottles containing water can contain many harmful chemicals. After close examination of the plastic, researchers have concluded that some plastics contain chemicals, such as phthalates, bisphenol A (BPA), endocrine disruptors, and carcinogens, which may leach into the water, especially after being stagnant for long periods of time.
An example of an additive is di-butyl phthalate and biphenyl A (BPA), these substances are incorporated while the plastics are being manufactured to provide tensile flexibility and tensile strength. The microplastics tend to accumulate and adsorb toxic materials from the seawater around them, such as organic pollutants and heavy metals. The chemicals are not bound to the microplastic surface, and as a result, when ingested they tend to leach into the animal tissues (Do Sul, J. A. I, 2014). The impacts from such chemical leaches include hepatic stress in fish, mortality, and endocrine
Reid, Brian. "Controversy Over Phthalates in Cosmetics" (2011): Our Stolen Future. Web. 2 Feb. 2015.
These fragments absorb all the toxins that pollute waterways, contaminate soil, and sicken animals (which are then consumed). Plastic trash also absorbs organic pollutants such as BPA. They take centuries to decompose while sitting in landfills, amounting to billions of environmentally poisonous time bombs. Bisphenol A (BPA) is a chemical compound used to create polycarbonate plastic and epoxy resins. Polycarbonate plastics are found in a wide range of products, but food and drink containers are the most concerning.
Contamination of Water and Air. Urbanization enhances the proliferation of industries, automobiles, and agricultural practices. Most toxic air contaminants are produced as we endeavor to fuel our homes, automobiles, factories, energy production facilities, and might also be discovered in indoor cleansing mixtures, and construction supplies. Furthermore pollutants found in gasoline, dry cleaning services, and paint thinners and strippers; som...
Some examples of harmful toxins with difficult names include diethanolamine (DEA), formaldehyde, glucocorticoids, and triethanolamine (TEA). We are exposed to toxic chemicals in many ways. We may breathe them in as sprays and powders, swallow chemicals on our lips and, even rub them on our skin. According to a team of researchers who conducted a study on the relationship between exposure to phthalates and DNA damage on human sperm, “cosmetics frequently contain enhancers that allow ingredients to penetrate deeper into the skin. Studies have found health problems in people exposed to common fragrance and sunscreen ingredients, including increased risk of sperm damage, feminization of the male reproductive system and low birth weight in girls” (Duty et al. 1164). There should be regulations banning toxic chemicals from personal care and beauty products because toxins are bad for our health (1), the consumer faith in cosmetic companies are suffering (2), and other countries recognized the effects and banned it while America has not