This new plastic was called Bakelite. Many new plastics have been made since Bakelite. Production of plastics has increased over 2000% since Bakelite was first produced, and there are now more than twenty known types. Research along the lines of plastics has given a great impetus to research and invention in many other different fields of endeavor. Millions of dollars are spent yearly in plastics research, trying to find new plastics and to improve the existing ones. Much research will be done in the future to lower the cost of producing plastics so that their consumption will become greater. In spite of the varied and widespread application of plastics in practically every phase of everyday life, the possibilities of this wonderful new material have been by no means exhausted. It seems safe to say that if the application and use of plastics continue to increase at the present rate, we may be living in a "Plastics Age."
An apt definition of plastics has been given by the head of the Monsanto Plastics Research who says, "Plastics are materials that, while being processed, can be pushed into almost any desired shape and then retain that shape."
The major chemicals used to make plastic resins pose serious risks to public health and safety. Many of the chemicals used in large volumes to produce plastics are highly toxic.Some chemicals, like benzene and vinyl chloride, are known to cause cancer in humans; many tend to be gases and liquid hydrocarbons, which readily vaporize and pollute the air. Many are flammable and explosive. Even the plastic resins themselves are flammable and have contributed to numerous chemical accidents. The production of plastic emits substantial amounts of toxic chemicals(eg. ethylene oxide, benzene and xylenes) to air and water. Many of the toxic chemicals released in plastic production can cause cancer and birth defects and damage the nervous system, blood, kidneys and immune systems. These chemicals can also cause serious damage to ecosystems.
Ethylene oxide is used as a sterilant in hospitals. It is also the principle metabolite of ethene, a precursor to polyethylene plastics and other synthetic chemicals. Ethylene oxide can be measured by gas chromatography in air or biological specimens. Ethylene oxide reacts in the body with hemoglobin.
Many food containers for meats, fish, cheeses, yogurt, foam and clear clamshell containers, foam and rigid plates, clear bakery containers, packaging "peanuts," foam packaging, audio cassette housings, CD cases, disposable cutlery, and more are made of polystyrene. J. R. Withey in Environmental Health Perspectives 1976 Investigated styrene and vinyl chloride monomer as being similar: "Styrene monomer readily migrates from food contained in it. It makes no difference whether the food or drink is hot or cold, or contains fat or water. ...It is not inconceivable that the animal body behaves as a 'sink' for styrene monomer until the lipid portion of the animal body either becomes saturated (although death would probably occur prior to this event) or the tissues are equilibrated at the same concentration as the exposure atmosphere."
PVC is used for many products including: flooring, toys, teethers, clothing, raincoats, shoes, building products like windows, siding and roofing, hospital blood bags, IV bags and other medical devices. One of it's major ingredients is chlorine. When chlorine-based chemicals are heated in the presence of hydrocarbons they create dioxin, a known carcinogen and endocrine disruptor. All PVC production releases dioxin. Other sources of dioxin are: production and use of chemicals, such as herbicides and wood preservatives, oil refining, burning coal and oil for energy, all car and truck exhaust, cigarette
Plasticizers are used in PVC that migrate into a blood recipient via the blood bag, IV bag, IV tubing. Children's toys are made with pvc.
Anyone who receives blood, is on kidney dialysis, or has tubes either inserted in them or has liquid or air transported to their body is at risk. About 85% of medical waste is incinerated, accounting for ten percent of all incineration in the U.S.Approximately five to fifteen percent of medical waste needs to be incinerated to prevent infectious disease. The remaining waste, while not posing any danger from infectious pathogens, is very dangerous when burned. It contains high volumes of chlorinated plastics including PVC (also the toxic substances Mercury, arsenic, cadmium and lead.
Pollution, such as plastic waste and oil spills, can harm marine life and ecosystems, affecting the abundance and distribution of organisms that contribute to tidal patterns. Human activities like sea walls and land reclamation can disrupt natural coastal processes, altering tides and increasing the risk of flooding in some areas.
An example of a positive effect of humans environment interaction is the amount of crops humans grow, which increases plant life and feeds animals in the environment, as well as feeding and benefiting humans. A negative effect is pollution, which damages both the environment and the people who live in it.
Animals can be affected by various types of pollution, including air pollution, water pollution, and noise pollution. Air pollution can lead to respiratory issues and other health problems, while water pollution can contaminate their food sources and disrupt their habitats. Noise pollution can disrupt their communication, breeding patterns, and migration.
Humans affect oceans through pollution, overfishing, habitat destruction, and climate change. These activities harm marine life, disrupt ecosystems, and contribute to ocean acidification and rising sea levels. It is important to implement sustainable practices to mitigate these impacts and protect our oceans for future generations.
Your teacher is an idiot. Ask him, or her, how a cheeseburger contributes to pollution. We live in an energy-based world. Fossil fuels are burned to produce electricity, which powers the factory in which the plastic is made. If you want to make your teacher happy, mention something about plastic grocery bags. They are usually only used once, and then thrown away.
Perhaps the major effect that humans have on the environment is the pollution of the atmosphere. The greenhouse gases in this pollution are causing temperature rises all over the world.
They affect wildlife, animal and humans. Pollution can be the end of the world as we know it.
Radioactive pollution causes cancer.
Pollution, such as plastic waste and oil spills, can harm marine life and ecosystems, affecting the abundance and distribution of organisms that contribute to tidal patterns. Human activities like sea walls and land reclamation can disrupt natural coastal processes, altering tides and increasing the risk of flooding in some areas.
Humans can positively effect the deciduous forests by planting new trees. They can also help by lowering pollution in general, such as by walking instead of driving.
There are many ill effects of pollution, some of them are short term while others are long term. Some examples of how it affects humans include allergic reactions, headaches, bronchitis, lung cancer and heart disease.
Pollution and greenhouse gases.
An example of a positive effect of humans environment interaction is the amount of crops humans grow, which increases plant life and feeds animals in the environment, as well as feeding and benefiting humans. A negative effect is pollution, which damages both the environment and the people who live in it.
How are responsible because there the one's who do it! You don't see a monkey go and throw a milk jug in the ocean. It only humans, and thats pollution. But, then again bird can carry plastic and drop it on the ocean, so it's half and half. ANSWER: Yes!!
The vehicle pollution effect on humans is that it effects their lungs which is dangerous for their lives.The vehicle pollution pollution will have 2 be checked atleast once a year,so that the pollution given out by the vehicle is decreased.It also effects the environment coz the bad air is not good for the trees either because they may become weak and eventually die.And thus like this there wont be any trees left.Therefore it is important to check the pollution emitted by the vehicle and control it.As it is importan to preserve all this for the future generations also.
air pollution can harm humans by the leathel toxens in it it can also kill animals and create water pollution
Water pollution is known as the most harmful, and serious environmental problems the Earth has. With it, it harms the areas of water of which contain thousands of sea life. Not only that, but as humans, it can also create such diseases to harm the human body's inside.