Suomen ympäristökeskus

 

This document specifies the procedure for a quantitative determination of major and trace element concentrations in homogeneous solid waste, soil, soil-like material and sludge by energy dispersive X-ray fluorescence (EDXRF) spectrometry or wavelength dispersive X-ray fluorescence (WDXRF) spectrometry using a calibration with matrix-matched standards. This document is applicable for the following elements: Na, Mg, Al, Si, P, S, Cl, K, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Se, Br, Rb, Sr, Y, Zr, Nb, Mo, Ag, Cd, Sn, Sb, Te, I, Cs, Ba, Ta, W, Hg, Tl, Pb, Bi, Th and U. Concentration levels between approximately 0,000 1 % and 100 % can be determined depending on the element and the instrument used.

 

This document deals with the assessment of human exposure from ingestion of soil. It specifies a simplified method for the estimation of the oral bioaccessibility of metal(loid)s from contaminated soils. The method is a chemical extraction using hydrochloric acid (HCl) and can be used at least as a first-tier screening to predict the oral bioaccessibility of arsenic (As), cadmium (Cd) and lead (Pb) in soil samples. It produces extracts that are representative of the bioaccessible concentrations measured by using the validated UBM (unified bioaccessibility method) test (ISO 17924)[1]. Soils, in sieved form (fraction < 250 µm without prior mechanical grinding) as recommended in ISO 17924, are extracted in an environment that simulate very simply the acidic conditions of the gastric compartment. This document describes the protocol and the approach to calculate the oral bioaccessibility of As, Cd and Pb in soils, usually measured with ISO 17924. From the extractable concentrations of metal(loid)s by HCl, the predicted bioaccessibility in both the gastric and gastrointestinal phases is calculated by taking the equations from simple linear regressions. In a second-tier study and a complementary validation approach, the ISO 17924 protocol is applicable to selected soil samples (approximately 10 % of samples) for better assessment of human exposure.

 

This document specifies the procedure for a quantitative determination of major and trace element concentrations in homogeneous solid waste, soil, soil-like material and sludge by energy dispersive X-ray fluorescence (EDXRF) spectrometry or wavelength dispersive X-ray fluorescence (WDXRF) spectrometry using a calibration with matrix-matched standards. This document is applicable for the following elements: Na, Mg, Al, Si, P, S, Cl, K, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Se, Br, Rb, Sr, Y, Zr, Nb, Mo, Ag, Cd, Sn, Sb, Te, I, Cs, Ba, Ta, W, Hg, Tl, Pb, Bi, Th and U. Concentration levels between approximately 0,000 1 % and 100 % can be determined depending on the element and the instrument used.

 

This International Standard specifies an instrumental method for the routine determination of the specific electrical conductivity in an aqueous extract of soil, sludge, biowaste and waste. The determination is carried out to obtain an indication of the content of water-soluble electrolytes in a sample. This International Standard is applicable to all types of air-dried samples of soil, sludge, biowaste and waste.

 

Specifies an instrumental method for the routine determination of the specific electrical conductivity in an aqueous extract of soil. The determination is carried out to obtain an indication of the content of water-soluble electrolytes in a soil.

 

This document specifies the basic methods for sampling suspended microplastics in water (domestic water, freshwater, seawater, treated wastewater and untreated wastewater), for their subsequent characterization. Suspended particles can also include synthetic or semi-synthetic polymeric materials (such as rubber). This document does not cover chemical analysis, biological (ecotoxicological) methods or physical methods, nor the pre-treatment or digestion methods intrinsic to such analyses. This document covers general methodologies

 

This document defines terms used in the field of soil quality.