• Introduction

• Biological Pollution   (part 1), (part 2), (part 3)

• Biological Pollution and Control

• Biological and chemical Pollutio

• Biological Pollution and Control

• Chemical Pollution

• Chemical Pollution and Control

• Enviroment and Health Part( 1),part(2), Part (3)

• Natural Pollutant

• Natural and Environment  Part (1),Part (2)

• Physical Pollution

Environmental Encyclopedia, 2004 Arabic

Environmental Encyclopedia, 2002

•   Introduction

•   Biological Pollutants (Part 1), (Part 2), (Part 3), (Part 4)

•   Biological Pollutants and Control

•   Biological and Chemical Pollutants

•   Biological, Chemical Pollutants and Control

•   Chemical Pollutants (Part 1), (Part 2)

•   Medicine and Environments (part 1), (part 2)

•   Natural Pollutants

•   Natural and Environments (part 1), (part 2)

•   Physical Pollutants

•   Physico-Chemical Pollutants

Environmental Encyclopedia, 2000

•   Biological Pollutants (Part 1), (Part 2)

•   Biological Pollutants and Control

•   Biological and Chemical Pollutants

•   Biological, Chemical Pollutants and Control

•   Chemical Pollutants (Part 1), (Part 2)

•   Chemical Pollutants and Control

•   Medicine and Environments

•   Natural Pollutants

•   Natural and Environments

•   Physical Pollutants

•   Physical Pollutants and Control

•   Physico-Chemical Pollutants

•   Physico-Chemical Pollutants and Control

•   Physical Pollutants [Miscellaneous]