Bisphenol A (BPA)

Bisphenol A (BPA) is an industrial chemical widely used in common plastic products, such as baby bottles, children’s toys, and the linings of most food and beverage cans. Many scientific studies including the largest study of BPA ever conducted on humans have found links between

BPA and serious health problems, from heart disease, diabetes and liver abnormalities in adults to developmental problems in the brains and hormonal systems of children.
BPA is widely use in so many products we use every day, so it is probably impossible to completely eliminate your exposure to this potentially harmful chemical. But still, you can lower your exposure and your risk of possible health problems associated with BPA by taking a few simple precautions.

Here are a few tips to help you lower your exposure to BPA:

· Eat Fewer Canned Foods

The easiest way to lower your intake of BPA is to stop eating so many foods that come into contact with the chemical. Eat fresh or frozen fruits and vegetables, which usually have more nutrients and fewer preservatives than canned foods, and taste better, too.

· Choose Cardboard and Glass Containers Over Cans

Highly acidic foods, such as tomato sauce and canned pasta, leach more BPA from the lining of cans, so it’s best to choose brands that come in glass containers. Soups, juices and other foods packaged in cardboard cartons made of layers of aluminum and polyethylene plastic (labeled with a number 2 recycling code) are safer than cans with plastic linings containing BPA.

· Don't Microwave Polycarbonate Plastic Food Containers

Polycarbonate plastic, which is used in packaging for many microwaveable foods, may break down at high temperatures and release BPA. Although manufacturers are not required to say whether a product contains BPA, polycarbonate containers that do are usually marked with a number 7 recycling code on the bottom of the package.

· Choose Plastic or Glass Bottles for Beverages

Canned juice and soda often contain some BPA, especially if they come in cans lined with BPA-laden plastic. Glass or plastic bottles are safer choices. For portable water bottles, stainless steel is best, but most disposable plastic water bottles do not contain BPA. Those that do are usually marked with a number 7 recycling code.

· Turn Down the Heat

For hot foods and liquids, switch to glass or porcelain containers, or stainless steel containers without plastic liners.

· Use Baby Bottles That Are BPA-Free

As a general rule, hard, clear plastic contains BPA while soft or cloudy plastic does not. Most major manufacturers now offer baby bottles made without BPA.

· Practice Moderation

The fewer canned foods and beverages you consume, the less your exposure to BPA, but you don’t have to cut out canned foods altogether to reduce your exposure and lower your potential health risks. In addition to eating less canned food overall, limit your intake of canned foods that are high in BPA.

Greenhouse effect

Do you know what a greenhouse is? Well, a greenhouse, as we all know, is a building made of glass used for growing plants. The roof and walls of the greenhouse are made of glass. I will explain how the greenhouse effect is brought about. Sunlight can easily pass through the transparent roof and walls of the greenhouse. The sunlight then strikes the objects inside the greenhouse. Examples of these objects are plants, flower pots and tables. Now all these objects absorb energy in the form of heat. These objects become warmer and they give off heat. Most of the heat energy is trapped inside the greenhouse. Only a little of the heat energy escapes or passes through the glass. As a result, the temperature inside the greenhouse is raised. This is the reason why we will feel mush warmer inside a greenhouse than outside in the open air. Now, let us turn our attention to the earth. It is also acts like a greenhouse but on a very much larger scale. As the sun shines on the earth, solar energy from the sun passes through the atmosphere that surrounds our planet. The atmosphere is a mixture of gases around the earth. It is like the glass of a greenhouse. After passing through the atmosphere, solar energy strikes the surface of the earth and warms up the oceans, land and all the things on earth. Then, the warmed surface of the earth gives off energy in the form of heat. The heat that is trapped in the atmosphere keeps the earth warm and makes life on the planet possible. The greenhouse effect will leads to the global warming. What is global warming? Global warming is an increase in the temperature throughout the world caused by the heat energy trapped around the earth. When global temperature increases, it will lead to many problems. So, we have to do something to prevent all these from happen. If pollution still continues to affect the environment, then our earth will be threatened. Therefore, we must do our best to prevent pollution and to preserve the environment.

LAND POLLUTION

HYE2.... ACTUALLY I AM FARYANA HIDAYAH BINTI ABD KARIM, I WOULD LIKE 2 POST ABOUT LAND POLLUION.... HERE I POST 2 LAND POLLUTION FOR OUR INFORMATION... HOPEFULLY WE4 CAN TAKE A ACTION TO OVERCOME THAT POLLUTION....

Land pollution is the degradation of the Earth's land surface through misuse of the soil by poor agricultural practices, mineral exploitation, industrial waste dumping, and indiscriminate disposal of urban wastes. It includes visible waste and litter as well as pollution of the soil itself.


Examples of Land Pollution

Soil Pollution
Soil pollution is mainly due to chemicals in herbicides (weed killers) and pesticides (poisons which kill insects and other invertebrate pests). Litter is waste material dumped in public places such as streets, parks, picnic areas, at bus stops and near shops.

Waste Disposal
The accumulation of waste threatens the health of people in residential areas. Waste decays, encourages household pests and turns urban areas into unsightly, dirty and unhealthy places to live in.

Control Measures
The following measures can be used to control land pollution:
anti-litter campaigns can educate people against littering;
organic waste can be dumped in places far from residential areas;
inorganic materials such as metals, glass and plastic, but also paper, can be reclaimed and recycled.

Hye!!! My name is Noor Liyana Binti Abdul Wahab… Now is my turn to post a blog. Continuing from our previous topic which we talk about air pollution, we are still going to talk about pollution but this time we’re going to talk about Water Pollution. I’m sure there is a lot talk about it. You guys must have so much idea in your mind right?? Just waiting for the time to burst it out right? Well this is the right time guys. Send your comments now…..
So, I’ve searched the internet and according to the American College Dictionary, pollution is defined as to make foul or unclean in other words, dirty. Water pollution occurs when a body of water is adversely affected due to the addition of large amounts of materials (including so many garbage; as an example for guys to understand) to the water.
For your information, over 70% of water on the earth surface is the most precious natural resource that exists on our planet. Without the water which contains hydrogen and oxygen, life on Earth would be non-existent. Although we as humans know this fact, we neglected it by polluting our rivers, lakes, and oceans. Apart from that, we are slowly and surely harming our planet by putting a high risk on organisms including us as a human. It is not just that, our drinking water also has become greatly affected especially we use the water for many other purposes. In order to reduce water pollution, we must understand the problems and become part of the solution.
Here is a view from David Krantz and Brad Kifferstein, USA. According to them “many causes of pollution including sewage and fertilizers contain nutrients such as nitrates and phosphates. In excess levels, nutrients over stimulate the growth of aquatic plants and algae. Excessive growth of these types of organisms consequently clogs our waterways, use up dissolved oxygen as they decompose, and block light to deeper waters. This, in turn, proves very harmful to aquatic organisms as it affects the respiration ability or fish and other invertebrates that reside in water.

Pollution is also caused when silt and other suspended solids, such as soil, wash off plowed fields, construction and logging sites, urban areas, and eroded river banks when it rains. Under natural conditions, lakes, rivers, and other water bodies undergo eutrophication, an aging process that slowly fills in the water body with sediment and organic matter. When these sediments enter various bodies of water, fish respiration becomes impaired, plant productivity and water depth become reduced, and aquatic organisms and their environments become suffocated.
Pollution in the form of organic material enters waterways in many different forms as sewage, as leaves and grass clippings, or as runoff from livestock feedlots and pastures. When natural bacteria and protozoan in the water break down this organic material, they begin to use up the oxygen dissolved in the water. Many types of fish and bottom-dwelling animals cannot survive when levels of dissolved oxygen drop below two to five parts per million. When this occurs, it kills aquatic organisms in large numbers which leads to disruptions in the food chain”. David Krantz and Brad Kifferstein above focus on the aquatic organisms, but for sure other organisms involve too including us.
Clearly, the problems, water pollution I meant, have the capabilities to corrupt our life on our planet. Yes there are laws that have been made to try to reduce water pollution but acknowledging the fact that water pollution is seriously a big problem and ways to reduce it is very important. The government alone cannot solve the entire problems. It is ultimately up to us, to inform, responsible and involved when it comes to the problems we face with our water. We must become familiar with our local water resources and learn about ways to try to solve it. So you guys, what are your opinions? Or suggestions?..........

introduction

Hello everybody, this blog is belonging to our group.Our group name is Spice Of Us. our group members are Atika Azren, Faryana Hidayah, Nurul Adillah and Noor Liyana. we like to talk about our environment. Nowdays, our environment has been pollute because of human.if we talk about environment pollution, actually there have many environment pollution. Today, we want to talk about air pollution.Air pollution is the human introduction into the atmosphere of chemicals, particulate matter, or biological materials that cause harm or discomfort to humans or other living organisms, or damages the environment. this situation actually give many effects to human and mostly to human health. Next time, I will tell more about thi pollution ok.bye