21 sub-categories under Human Health and Organizations:

Asbestos (1)
Asthma (2)
Cancer (4)
Chlorine (2)
Dioxin (5)
Drinking Water (17)
Environmental Psychology (0)
Fluoride (2)
Food Quality (13)
Genetically Modified Foods (10)
Lead (1)
Light Pollution (2)
Mercury (1)
Multiple Chemical Sensitivity (2)
Noise Pollution (1)
Occupational Hazards (1)
Organochlorines (4)
Poverty (6)
Radiation (3)
Radon (0)
Toxins (6)