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290<br />

Table 1 Selected soil test methodologies<br />

Test Organism Duration Endpoints Reference/Source Comments<br />

Microbial Processes<br />

Microbial Processes<br />

N-Trans<strong>for</strong>mation<br />

Microbial Processes<br />

C-Trans<strong>for</strong>mation<br />

Invertebrate Fauna<br />

Eisenia fetida/<strong>and</strong>rei<br />

(Oligochaeta)<br />

Table 1 continued overleaf<br />

≥28 d M (i) EU draft C.21: Soil Microorganisms. Nitrification<br />

Trans<strong>for</strong>mation Test.<br />

(ii) OECD 216 Soil Microorganisms, Nitrogen Trans<strong>for</strong>mation<br />

Test (2000).<br />

(iii) ISO 14238 Soil quality – Biological methods:<br />

Determination of nitrogen mineralisation <strong>and</strong> nitrification in<br />

soils <strong>and</strong> the influence of chemicals on these processes<br />

(1997).<br />

≥28 d M (i) EU draft C.22: Soil Microorganisms. Carbon Trans<strong>for</strong>mation<br />

Test.<br />

(ii) OECD 217 Soil Microorganisms, Carbon Trans<strong>for</strong>mation<br />

Test (2000).<br />

(iii) ISO 14238 Soil quality – Laboratory incubations systems<br />

<strong>for</strong> measuring the mineralisation of organic chemicals in soil<br />

under aerobic conditions (1997).<br />

7 – 14 d S (i) EU C.8: Earthworm acute toxicity test.<br />

(ii) OECD 207 Earthworm acute toxicity tests (1984).<br />

(iii) ISO 11268-1 Soil Quality – Effects of pollutants on<br />

earthworms (Eisenia fetida). Part 1: Determination of acute<br />

toxicity using artificial soil substrate (1993).<br />

(iv) ASTM E1676-97 St<strong>and</strong>ard guide <strong>for</strong> conducting laboratory<br />

soil toxicity or bioaccumulation tests with the Lumbricid<br />

earthworm Eisenia fetida (1997).<br />

− Addresses short-term adverse effects.<br />

− Based on soil microflora nitrate production.<br />

− Bacteria are present at up to 10 million per cm 2 in soils. This<br />

corresponds to several tonnes per hectare.<br />

− Addresses short-term adverse effects.<br />

− Based on soil microflora respiration rate.<br />

− Bacteria are present at up to 10 million per cm2 in soils. This<br />

corresponds to several tonnes per hectare.<br />

− Adult survival assessed after 1 – 2 weeks.<br />

− Important ecological function (enhance decomposition <strong>and</strong><br />

mineralisation via incorporation of matter into soil).<br />

− Important food source <strong>and</strong> potential route of bioaccumulation by<br />

higher organisms.<br />

− Large size/ease of h<strong>and</strong>ling.<br />

− Readily cultured/maintained in the laboratory.<br />

− Litter-dwelling epigeic species.<br />

− St<strong>and</strong>ard test organism <strong>for</strong> terrestrial ecotoxicology.<br />

− The Lumbricidae account <strong>for</strong> 12% of the edaphon (soil biota) by<br />

biomass <strong>and</strong> are there<strong>for</strong>e important prey species.<br />

APPENDIX V

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