Water Pollution and Global Warming

4764 Words May 20th, 2012 20 Pages
Assignment on “Water Pollution & Global Warming”

Course : Introduction to Public Health Course Code : PBH 101

Prepared for Dr. Maleeha Azeem (MeA) Course Instructor North South University

Prepared by Kazi Nazrul Islam Id : 1010275 030 Sec : 01

Date of Submission : 20 November, 2011

PBH 101

[ASSIGNMENT ON WATER POLLUTION & GLOBAL WARMING]

Table of Contents: Index Contents 1.0 Water Pollution 1.1 Introduction 1.2 Sources of Water Pollution 1.3 Common Contaminants 1.4 Health Hazards Caused by Water Pollution 2.0 Global Warming 2.1 What is Global Warming 2.2 Causes of Global Warming 2.3 Consequences of Global Warming 3.0 Reference Page no. 03 04 09 10

11 12 15 18

2

PBH 101

[ASSIGNMENT ON WATER POLLUTION & GLOBAL WARMING]

1.0
…show more content…
Examples of sources in this category include discharges from a sewage treatment plant, a factory, or a city storm drain. Point source water pollution are easily findable. So, people can easily control them. Non–point source pollution refers to diffuse contamination that does not originate from a single discrete source. Non-point source pollution is often the cumulative effect of small amounts of contaminants gathered from a large area. A common example is the leaching out of nitrogen compounds from fertilized agricultural lands. Nutrient runoffs in storm water from “sheet flow” over an agricultural field or a forest are also cited as examples of Non-point source pollution.

4

PBH 101

[ASSIGNMENT ON WATER POLLUTION & GLOBAL WARMING]

Surface Water Pollution : Surface water bodies are extensively used for disposal of untreated industrial wastes and this is one of the main sources of surface water pollution. Surface water pollution is caused by –  Domestic waste : Water pollution of domestic is mainly caused by sewage. Sewage is defined as the waterborne waste derived from home, animal or food processing plants and includes human excreta, soaps, organic materials, different types of solids, waste food, oil detergents, paper and cloth. They are the largest group of water pollutants. Water pollution is caused by uncontrolled dumping of waste collected from
Open Document