RIVER DERWENT AT RAYNESWAY Monitoring Site

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Classification Item	2019	2022
1,2-dichloroethane	Good
Acid Neutralising Capacity	High	High
Aclonifen	Good
Alachlor	Good
Aldrin, Dieldrin, Endrin & Isodrin	Good
Ammonia (Phys-Chem)	High	High
Benzene	Good
Bifenox	Good
Biochemical Oxygen Demand (BOD)		High
Cadmium and Its Compounds	Good
Carbon Tetrachloride	Good
Chlorothalonil	High
Cybutryne	Good
DDT Total	Good
Diazinon	High
Dichlorvos (Priority)	Good
Dimethoate	High
Dissolved oxygen	High	High
Hexachlorocyclohexane	Good
Lead and Its Compounds	Good
Nickel and Its Compounds	Good
Pendimethalin	High
Pentachlorobenzene	Good
Pentachlorophenol	Good
Phosphate	Moderate
Quinoxyfen	Good
Temperature	High	High
Terbutryn	Good
Tetrachloroethylene	Good
Trichlorobenzenes	Good
Trichloroethylene	Good
Trichloromethane	Good
para - para DDT	Good