Presenter: Hoang Thi Lien

Environmental pollution.Environmental pollution.

The ongoing development of the economy and the population did increase pollution of land, water, air and environment.

Causes of air pollution.Causes of air pollution.

-Air pollution is caused by a wide variety of things. The earth is great at cleaning -Air pollution is caused by a wide variety of things. The earth is great at cleaning the air on its own. However, air pollution has grown so much, the earth can no the air on its own. However, air pollution has grown so much, the earth can no longer clean all of it. This is starting to have adverse effects on the longer clean all of it. This is starting to have adverse effects on the environment such as causing acid rain, smog and a wide variety of health environment such as causing acid rain, smog and a wide variety of health problems.problems.

-Cars, trucks, jet airplanes and other combustion engine vehicles cause air -Cars, trucks, jet airplanes and other combustion engine vehicles cause air pollution. The exhaust from these contains carbon monoxide, nitrous oxide pollution. The exhaust from these contains carbon monoxide, nitrous oxide and gaseous oxide. This type of air pollution creates smog (as seen in Los and gaseous oxide. This type of air pollution creates smog (as seen in Los Angeles) which causes respiratory health problems and holes in the ozone Angeles) which causes respiratory health problems and holes in the ozone layer, which increases the exposure to the sun's harmful rays.layer, which increases the exposure to the sun's harmful rays.

-Factories, office buildings, homes and power-generating stations burn fossil fuels, -Factories, office buildings, homes and power-generating stations burn fossil fuels, which cause air pollution. The burning of oil and coal (fossil fuels) also which cause air pollution. The burning of oil and coal (fossil fuels) also contributes to smog. This air pollution destroys plants, damages buildings and contributes to smog. This air pollution destroys plants, damages buildings and creates oxidation on iron.creates oxidation on iron.

-Petroleum refineries release hydrocarbons and various particulates that pollute -Petroleum refineries release hydrocarbons and various particulates that pollute the air.the air.

As in the As in the cities cities and also and also in rural in rural areas, areas, pollution pollution levels levels are are increasinincreasing, likely g, likely to get to get the the higher higher respiratorespiratory ry diseasesdiseases

• Cars, trucks, jet airplanes and other Cars, trucks, jet airplanes and other combustion engine vehicles cause combustion engine vehicles cause air pollution.air pollution.

4.     Radiation Pollution:  The WIPP Site4.     Radiation Pollution:  The WIPP Site

• Generally, one thinks in terms of a nuclear war when Generally, one thinks in terms of a nuclear war when considering pollution that involves radiation. There are many considering pollution that involves radiation. There are many other sources of radiation pollution. New Mexican's in 1988, for other sources of radiation pollution. New Mexican's in 1988, for example, have been expressing concern over the example, have been expressing concern over the WIPP WIPP SiteSitethat will be used to store low-level nuclear waste. that will be used to store low-level nuclear waste. Radioactive waste is especially troublesome because some of it Radioactive waste is especially troublesome because some of it has to be secured for up to 250,000 years. This period of time has to be secured for up to 250,000 years. This period of time represents about one fourth of the entire time that humans represents about one fourth of the entire time that humans have been considered as a separate species  Eitzen (1986:99).have been considered as a separate species  Eitzen (1986:99).

• Radioactive waste includes:Radioactive waste includes:

• used nuclear coresused nuclear cores

• uranium tailingsuranium tailings

• waste generated by hospitals, universities, and industrial waste generated by hospitals, universities, and industrial plants.plants.

• Solid Waste Solid Waste PollutionPollution

• As a result of As a result of waste dumped in waste dumped in the Atlantic the Atlantic Ocean, Ocean, "Swimming in the "Swimming in the Atlantic Ocean (on Atlantic Ocean (on the North-East the North-East coast of the U.S.) coast of the U.S.) is like swimming is like swimming in an unflushed in an unflushed toilet" (CNN toilet" (CNN report, 7-30-88). report, 7-30-88). Also See (Eitzen, Also See (Eitzen, 2000:83-84) for 2000:83-84) for more on the more on the subject of solid subject of solid waste pollution.waste pollution.

- Pesticides- Pesticides

Pesticides used to kill indoor and outdoor pests, insecticides used to kill Pesticides used to kill indoor and outdoor pests, insecticides used to kill insects and herbicides use to kill weeds all cause air pollution.insects and herbicides use to kill weeds all cause air pollution.

- Fertilizer Dust- Fertilizer Dust

Dust from fertilizers used to help plants grow causes air pollution.Dust from fertilizers used to help plants grow causes air pollution.

• DeforestationDeforestation

      Water PollutionWater Pollution

1.1. industries (which pour a variety of nasty substances industries (which pour a variety of nasty substances into lakes, streams and the ocean)into lakes, streams and the ocean)

• 2.2.Cities Cities dispose of their dispose of their waste in rivers waste in rivers (that often (that often serves as serves as drinking drinking water).water).

• 3.There are 3.There are also oil and also oil and other chemical other chemical spills.spills.

• 4. 4. Cities Cities dispose dispose of their of their waste waste in rivers in rivers (that (that often often serves serves as as drinking drinking water).water).

SolutionSolution

1.1. Prescribed places Prescribed places disposal garbagedisposal garbage

• Mét s¬ ®å t¸i chÕ.Mét s¬ ®å t¸i chÕ.

The The end.end.