# Chemical exposure and child neurodevelopment research > Developing situation record from CLSTR: https://clstr.news/situations/chemical-exposure-and-child-neurodevelopment-research > Updated: 2026-10-27T16:53:52.000Z. Sources: 2. Developments: 2. Recent findings have highlighted the risks associated with chemical pollutants to child health and cognitive development. In Luxembourg, the Environment Agency reported that 41% of sampled children’s clothing items, including jackets and trousers from retailers such as H&M and Decathlon, contained per- and polyfluoroalkyl substances (PFAS) exceeding European safety standards. These non-compliant items were removed from sale in late 2025. Parallel research published in Environmental Health Perspectives by Inserm and several universities has linked prenatal exposure to chemical mixtures with neurological risks. By analyzing 380 mother-child pairs, researchers found that exposure to substances including phthalates, bisphenols, and parabens—particularly during the third trimester—was associated with an average population-level decrease of approximately 2.86 IQ points in children tested at age three. The study identified six priority substances, noting that even individual compounds showed associations with lower cognitive scores. ## Timeline ### 2026-10-27: Research links prenatal chemical exposure to lower child IQ A study involving 380 mother-child pairs suggests that prenatal exposure to certain phthalates and bisphenols is associated with a reduction in IQ scores in children at age three. 2 sources. https://clstr.news/cluster/research-links-prenatal-chemical-exposure-to-lower-child-iq ### 2026-10-20: Chemical pollutants linked to child safety risks and IQ decline Luxembourg authorities have flagged children's clothing from major retailers for excessive PFAS levels, while new research links prenatal chemical exposure to significant reductions in average child IQ. 2 sources. https://clstr.news/cluster/chemical-pollutants-linked-to-child-safety-risks-and-iq-decline --- Cite as: Chemical exposure and child neurodevelopment research. CLSTR, https://clstr.news/situations/chemical-exposure-and-child-neurodevelopment-research