ISO 21285:2019 土壤质量 土壤污染物对土壤螨（阿氏螨）繁殖的抑制作用

标准编号：ISO 21285:2019

中文名称：土壤质量 土壤污染物对土壤螨（阿氏螨）繁殖的抑制作用

英文名称：Soil quality — Inhibition of reproduction of the soil mite (Hypoaspis aculeifer) by soil contaminants

发布日期：2019-04

标准范围

^{This document specifies a chronic test method for evaluating the habitat function of soils and 
determining effects of soil contaminants and substances on the reproduction of Hypoaspis aculeifer by 
– mainly – alimentary uptake. This method is applicable to soils and soil materials of unknown quality, 
e.g. from contaminated sites, amended soils, soils after remediation, industrial, agricultural or other 
sites under concern and waste materials (e.g. dredged material, municipal sludge from a wastewater 
treatment plant, composed material, or manure, especially those for possible land disposal). The 
reproduction (= number of juveniles) is the measured parameter of the test. The test reflects the 
bioavailability of a mixture of contaminants in natural soils (contaminated site soils) to a species which 
represents a trophic level which is not covered by other ISO standards. This test is not intended to 
replace the earthworm (see ISO 11268-2) or Collembola (see ISO 11267) reproduction tests since this 
species belongs not only to a different trophic group but also a different taxonomic group (= mites; i.e. 
arachnids) than those used usually.
Effects of substances are assessed using a standard soil, preferably a defined artificial soil substrate. For 
contaminated soils, the effects are determined in the soil to be tested and in a control soil. Depending 
on the objective of the study, the control and dilution substrate (dilution series of contaminated soil) 
are either an uncontaminated soil comparable to the soil to be tested (reference soil) or a standard soil 
(e.g. artificial soil).
This document provides information on how to use this method for testing samples (soils or substances) 
under temperate conditions.
This document is not applicable to substances for which the air/soil partition coefficient is greater than 
one, or to substances with vapour pressure exceeding 300 Pa at 25 °C.
NOTE The stability of the test substance cannot be ensured over the test period. No provision is made in the 
test method for monitoring the persistence of the substance under test.}

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