Реферат: Pollution In Ocean Environmets Essay Research Paper

that are made by the federal and the provincial government that regulates the

use of pesticides and sets out guidelines to follow when applying pesticides.

There is a new way of applying pesticides that is called Chemigation.

Chemigation is basically applying pesticides through an irrigation system.

Some advantages to Chemigation are uniform distribution of pesticide,

reduced mechanical damage to crops, and reduced operation hazards

(Stanley, On-line). This process allows the farmer to apply exact amounts so

pesticides are not over used and spills are less likely. Runoff can be

minimized by the use of GIS and GPS systems to produce a three

dimensional computer image of your land and there by locate problem areas

that precautions should be taken. This sort of a program is going on in Iowa

and is funded by the government (Havens, On-line).

Sewage treatment would greatly reduce the amount of harmful

nutrients that cause eutrophication. There are many different way that

different areas of the world go about reducing the release of nutrients into

bodies of water. This is another use for GIS and GPS systems to produce

three dimensional computer images that can allow us to better observe the

extent of eutrophication. This project is being used in the Chesapeake Bay

area (Eutrophication, On-line). In California they are using marshes to filter

partly treated sewage and the water that flows out on the other end is cleaner

than the water that it is flowing into. The marsh cleans out the water and

uses the nutrients to grow more algae which is good for marsh areas. In

Nova Scotia they are treating sewage naturally. They are using large clear

cylinders to hold snails, fish, and plants such as cattails and irises. The irises

and cattails absorb toxic chemicals and the snails eat the growth on the sides

of the cylinders so sunlight can penetrate the glass and allow the plants to

grow (Redwood, On-line).

Industry contributes a lot in water pollution, but there are things that

can be done to eliminate a lot of it. In the case of acid rain industries can