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

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AX7-185<br />

Freshwater<br />

Species Chemical<br />

Cladoceran<br />

(Ceriodaphnia dubia)<br />

Worm<br />

(Lumbriculus variegatus)<br />

Amphipod<br />

(Hyalella azteca)<br />

Amphipod<br />

(Hyalella azteca)<br />

Amphipod<br />

(Hyalella azteca)<br />

Mayfly<br />

(Leptophlebia marginata)<br />

Mayfly<br />

(Leptophlebia marginata)<br />

Table AX7-2.4.1. Effects <strong>of</strong> <strong>Lead</strong> to Freshwater and Marine Invertebrates<br />

lead<br />

chloride<br />

lead<br />

chloride<br />

lead<br />

chloride<br />

lead<br />

chloride<br />

lead<br />

chloride<br />

lead<br />

chloride<br />

lead<br />

chloride<br />

Endpoint:<br />

Conc. (µg/L)*<br />

LC50:<br />

280<br />

>2,700<br />

>2,700<br />

LC50:<br />

>8,000<br />

>8,000<br />

>8,000<br />

LC50:<br />

5,400<br />

>5,400<br />

LC50:<br />

27 (20.1-36.4)<br />

LC50:<br />

60 (53.6-67.3)<br />

LC50:<br />

1090<br />

(400-133200)<br />

LC50:<br />

5000<br />

Duration <strong>of</strong><br />

Exposure Water Chemistry Test Type - Effect Reference<br />

48 h pH:<br />

6–6.5<br />

7–7.5<br />

8–8.5<br />

Hardness: 280-300 mg/L CaCO3<br />

96 h pH:<br />

6–6.5<br />

7–7.5<br />

8–8.5<br />

Hardness: 280-300 mg/L CaCO3<br />

96 h pH:<br />

6–6.5<br />

7–7.5<br />

8–8.5<br />

Hardness: 280-300 mg/L CaCO3<br />

8 days Hardness<br />

130 mg/L<br />

pH 7.8-8.6<br />

8 days Hardness<br />

130 mg/L<br />

pH 7.8–8.6<br />

96 h pH:<br />

4.5<br />

96 h pH<br />

7.0<br />

static-survival Schubauer-Berigan<br />

et al. (1993)<br />

static-survival Schubauer-Berigan<br />

et al. (1993)<br />

static-survival Schubauer-Berigan<br />

et al. (1993)<br />

renewal, 1-weekold<br />

amphipods<br />

renewal, 10- to 16week<br />

old<br />

amphipods<br />

MacLean et al.<br />

(1996)<br />

MacLean et al.<br />

(1996)<br />

acute - survival Gerhardt (1994)<br />

acute - survival Gerhardt (1994)

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