River Pollution River pollution is form of water pollution that refers to the contamination of rivers. River pollution occurs when waste and different other pollutants are discharged into river without being properly treated. River pollution has negative effect on aquatic ecosystems. The negative impact on plants and animals often leads to decline in species‚ and sometimes even to extinction of entire species (Yangtze River dolphin). River pollution also leads to decrease in freshwater resources
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Findings related to CHEMISTRY) Submitted by: Ryiel Faye B. Clavecilla Submitted to: Mr. Randy Sanfuego (TITLE) AIR POLLUTION * Introduction: We need air in order for us to breathe. But on some reasons‚ the air that is physically needed by our bodies is now being polluted. The term "air pollution" is used to describe substances that are artificially introduced into the air. Air pollution stems from gases and airborne particles which‚ in excess‚ are harmful to human health‚ buildings and ecosystems
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Topic: The causes and effects of air pollution Air pollution is a serious problem facing by many countries now. Air pollution is the presence of abnormal concentration and abnormal constituents in air. The quality of the air has been deteriorating in urban areas‚ we hard to get a healthy life with fresh air. The air is being polluted by smoke‚ harmful gasses‚ dust articles and others. Therefore‚ there are three main factors that caused air pollution which are exhaust gases from cars‚ uncontrolled
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that water pollution defines as “the addition of undesirable materials into aquatic bodies” (p.1). This may cause physical‚ chemical or biological change in water‚ leading to different harmful effects on organisms and environment. Lots of aquatic organisms are killed. Therefore‚ the problem of water pollution should be solved immediately. And before we combat the problem‚ we must analysis the causes and effects on the environment and organisms. In this essay‚ the causes of water pollution will be firstly
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the study of air pollution are introduced. lsointroduced are a brief history of air pollution‚ its regulation‚ and trends of its ambient concentrations and emissions. Keywords: Anthropogenic‚ biogenic‚ geogenic emissions biogenic‚; primary and secondary pollutants; criteria‚ hazardous‚ radioactive‚ indoor pollutants; sulfur smog‚ photochemical smog; UN-ECE‚ US-EPA‚ Clean Air Act. Air pollution spreads easily as it travels into the atmosphere. People get exposed to air pollution not just outdoors
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Light pollution Light pollution‚ also known as photo pollution or luminous pollution‚ is excessive artificial light. This phenomenon is pronounced around urban centers‚ where city lights diminish the view of stars and planets. In addition to brightened skies around cities‚ light pollution also refers to any outdoor light that creates glare and interferes with the natural night environment. Cause Light pollution results from outdoor lights aimed
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THERMAL POLLUTION It is one of the pollution that effects on living things and the environment badly. The definition of thermal pollution is the degradation of water quality by any process that changes ambient water temperature. A common cause of thermal pollution is the use of water as a coolant by power plants and industrial manufacturers. When water used as a coolant is returned to the natural environment at a higher temperature‚ the change in temperature decreases oxygen supply‚ and affects ecosystem composition
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unfrozen fresh water is found mainly as groundwater‚ with only a small fraction present above ground or in the air. However‚ water is now being heavily polluted by nobody else but human. So what are the causes and effects of water pollution? The causes of water pollution vary. However‚ we can sum them up in to two groups: One is direct causes and the other is indirect causes. The direct causes are what are dumped directly into water bodies‚ such as raw sewage‚ household waste or chemicals. In developing
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Air Pollution Air pollution is very bad. We should regulate the excretion of air pollution from combustion engines and factories. Air pollution is contaminated air. It is both a health hazard and an environmental hazard. There are several ways how air pollution is bad‚ but there are also ways to help decontaminate or at least lower some of the pollution. Many people know about air pollution‚ but not everyone knows how hazardous it really is. According to the Environmental Protection Agency
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Adulteration of food and pollution "Adulteration" is a legal term meaning that a food product fails to meet federal or state standards. Food is the basic necessity of life. One works hard and earns to satisfy our hunger and relax (enjoy) later. But at the end of the day‚ many of us are not sure of what we eat. We may be eating a dangerous dye‚ sawdust‚ soapstone‚ industrial starch‚ and aluminum foil and so on! Contaminated foods and drinks are common sources of infection. Often‚ we invite diseases
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