For the first time, µ-X-ray fluorescence (µ-XRF) mapping combined with fluorine K-edge µ-X-ray absorption near-edge structure (µ-XANES) spectroscopy was applied to depict per- and polyfluoroalkyl substances (PFAS) contamination and inorganic fluoride in samples concentrations down to 100 µg/kg fluoride. To demonstrate the matrix tolerance of the method, several PFAS contaminated soil and sludge samples

While our awareness of the toxicity of rare earth elements to aquatic organisms increases, our understanding of their direct interaction and accumulation remains limited. This study describes the acute toxicity of lanthanum (La) and gadolinium (Gd) in Daphnia magna neonates and discusses potential modes of action on the basis of the respective patterns of biodistribution. Ecotoxicological bioassays

Prehistoric and modern records of Hg in peats from the lower Amur River basin, eastern Asia, were investigated. The Hg accumulation rates (AR) of two 14C-dated cores from Holocene raised and blanket peats were determined. The low and monotonous Hg AR values of the raised peats determined in the lower part of the core (mean 1.9 µg Hg m‒2 yr‒1) represent prehistoric Hg inputs from the atmosphere. A sharp

Indoor and outdoor dust from three rural communities (Emu Ebendo, EME, Otu Jeremi, OTJ, and Ebedei, EBD) around gas flaring points and a rural community (Ugono Abraka, UGA) without gas flare point in the Niger Delta, Nigeria were analysed for the concentrations and distribution of PAHs, sources, and health risk resulting from human exposure to PAHs in dusts from these rural communities. The PAHs were