Question

Correctly classify each of the following water pollutants according to the following scheme of possibilities: (a) inorganic chemical, nutrient; (b) inorganic chemical, heavy metal; (c) inorganic chemical, radionuclide; (d) organic chemical, chlorinated hydrocarbon; (e) organic chemical; pesticide or herbicide; (f) physical, sediment; (g) physical, thermal; (h) biological, oxygen depleting substance; (i) biological, pathogen; (j) Organometallic; (k) Metalloid, (l) Surfactant.

Lead

Mercury

As2O5

(CH3)2HG

(NH4)+

Methyl parathion

Pyrethrin I

Carbaryl

Dioxin

Biomass

Answer 1

(a) inorganic chemical, nutrient --------------- (NH4)+

(b) inorganic chemical, heavy metal ------- Lead

(d) organic chemical, chlorinated hydrocarbon --------- Dioxin

(e) organic chemical; pesticide or herbicide ---- Methyl parathion, Pyrethrin I, Carbaryl

(f) physical, sediment ----- Biomass

(h) biological, oxygen depleting substance ---- Mercury

(j) Organometallic - (CH3)2HG

(k) Metalloid --------- As2O5

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