toxic

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Toxic Compounds: 

Toxic Compounds

Slide4: 

Follow the Dangerous substances in water link in the See also box to find out why this is an indicator. Dangerous substances in water - Downstream water quality sites failing EQS for list 1 substances Dangerous substances in water - Downstream water quality sites failing EQS for list 1 substances

Slide5: 

Figure 4: Non-compliant sites for List 2 dangerous substances in England and Wales, 2001

Phthalate Properties: 

Phthalate Properties

Phthalates In Effluents: 

Phthalates In Effluents 70 Mean DEP 0 10 20 30 40 50 60 Raw Primary Trickle Humus Reed g/L Mean DEHP 0 10 20 30 40 50 60 70 Raw Primary Trickle Humus Reed

Sludge Data: 

Sludge Data

Slide13: 

water <0.02390 sediment 390 algae 2 500 Tilapia 1 900 Tigerfish 5 000 Cormorant 9 500 Crocodile 34 200   DDT in Lake Kariba, ng/g:

Slide15: 

  Examples of Toxic Compounds and Typical LD50 Concentrations for Fish   Compound Typical LD50 mg/l Ammonia 2-3 Chlorine 0.05-0.2 Cyanide 0.04-0.1 DDT <0.1 Hydrogen Sulphide 0.5-1.0 Silver Nitrate 0.004 Zinc 0.004  

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