By: Arzu Mammedli & Aytaj Jafarova Specialty: Ecology engineering Subject: Environmental Economy Lecturer: Mammad Huseynov



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FF ENV ECONOMY

WATER POLLUTION CONTROL POLICY

By: Arzu Mammedli & Aytaj Jafarova

Specialty: Ecology engineering

Subject: Environmental Economy

Lecturer:Mammad Huseynov

CONTENTS:

  • WATER
  • CAUSES OF WATER POLLUTION
  • TYPES OF WATER POLLUTANTS\DISCHARGES
  • EFFECTS ON THE ECONOMY
  • REGULATION and CONTROL

WATER

Water covers almost 70% of the world's surface.

  • 2.5% is fresh
  • 1% of that is available for use. 
  • Water is an essential element in many industrial and commercial production processes.

Not only fresh water matters

Saltwater resources are also of vital importance.

  • Marshes and coastal lowlands are critical for fish and wildlife resources
  • beaches and scenic coasts are important recreational resources
  • coastal waters provide transportation and pleasure boating services
  • saltwater fisheries are a major source of food.

Water quality of water bodies depend on the sources that feed them.

  • Water quality of water bodies depend on the sources that feed them.
  • Water pollution is created when pollutants enter these sources.
  • It costs the economy by impacting public health, fishing, tourism, and the environment.
  • Governments try to control the damage by setting water-quality standards to regulate usage. 

TYPES OF WATER POLLUTANTS


Organic wastes:
degradable wastes such as domestic sewage and residuals from pulp mills and food-processing, plants,
chemicals such as pesticides, detergents, and solvents, oil.
Inorganic substances: chemicals such as toxic metals,
salts and acids
plant nutrients such as nitrate and phosphorous compounds.
Non-material pollutants: radioactivity,
heat.
Infectious agents: bacteria,
viruses.

types of discharges


Point sources is a single identifiable source

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