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Air Quality Criteria for Lead Volume II of II - (NEPIS)(EPA) - US ...

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AX7-200<br />

Table AX7-2.5.2. Essential Ecological Attributes <strong>for</strong> Natural Aquatic Ecosystems Affected by <strong>Lead</strong><br />

Category Species<br />

Biotic Condition<br />

Ecosystems and<br />

Communities-<br />

Community<br />

Composition<br />

Condition<br />

Measures<br />

Protozoan community Reduced species<br />

abundance and<br />

diversity<br />

Protozoan community Reduced species<br />

abundance<br />

Protist community Reduced species<br />

abundance and<br />

diversity<br />

Exposure<br />

Medium Location<br />

Exposure<br />

Concentrations<br />

Other<br />

Metals<br />

Present Reference<br />

Marine water Laboratory microcosm 0.02– 0.05 mg/L N Fernandez-<br />

Leborans and<br />

Novillo (1992)<br />

Freshwater<br />

water<br />

Mei<strong>of</strong>auna community Reduced abundance Marine<br />

sediment<br />

Algal community Increased respiration Freshwater Domestic water<br />

stabilization pond<br />

Algal community Decreased primary<br />

productivity<br />

Meiobenthic<br />

community<br />

(primarily nematodes)<br />

Reduced species<br />

abundance<br />

No effect on<br />

abundance<br />

Laboratory microcosm 0.05–1 mg/L N Fernandez-<br />

Leborans and<br />

Antonio-García<br />

(1988)<br />

Marine water Laboratory microcosm 1 mg/L N Fernandez-<br />

Leborans and<br />

Novillo (1994)<br />

Laboratory microcosm 177 mg/kg dw Y Millward et al.<br />

(2001)<br />

Freshwater Sharana Basaveshwara<br />

Tank, India<br />

Marine<br />

sediment<br />

Laboratory microcosm 1343 mg/kg dw<br />

1580 mg/kg dw<br />

25–80 mg/L ? Jayaraj et al. (1992)<br />

6–32 mg/L ? Jayaraj et al. (1992)<br />

N Austen and<br />

McEvoy (1997)

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