... 2.5mPa(25°C).Solubility: 1.2mg/l in water, readily soluble in most organic solvents8. Toxicity Chlorpyrifos is moderate toxic ... at experimental dosage. Maximum allowed concentration0.2mg/m3 (TLV) in indoor air. High toxic to fish and aquatic organisms, LD50 ... , stomach, and respiratory action.Non persistent on leaves, persistent in soil, high efficiency for the control of underground pests. At the ...