Muhammad Yasir Abdur Rehman, Ph.D.
Environmental Scientist & Lead Researcher | Olympian Water TestingProfessional Biography
Dr. Muhammad Yasir Abdur Rehman is an environmental scientist with a Ph.D. in Environmental Science from Pakistan with a specific focus on drinking water Arsenic (As) exposure-associated toxicogenomic responses in human blood among As-exposed populations. He specializes in exposure assessment, integrated omics, human biomonitoring, ground- and surface-water contamination, and biomarker pathway analysis using computational tools. His work spans environmental monitoring, laboratory analysis, and health-risk evaluation across multiple environmental matrices. His international experience comprises working with top scientists from China and the Netherlands.
At Olympian Water Testing, Dr. Rehman leads scientific research review and analytical interpretations related to drinking water contaminants and is dedicated to leveraging his expertise in Olympian water testing to deliver safe, contaminant-free drinking water to U.S. residents while maintaining strict adherence to regulatory standards. His expertise is critical in analyzing complex data from legacy and emerging environmental contaminants, mainly heavy metals, arsenic, pharmaceuticals, PAHs, PFAS, and volatile organics, etc. His research expertise is essential for evaluating large exposure cohorts and overseeing testing methodologies to ensure Olympian's testing methodologies meet the highest scientific and regulatory standards.
Selected Peer-Reviewed Publications
Dr. Rehman has published over 15 research articles in top-ranked international journals. Below is a selection of works most relevant to water quality and toxicology.
- The miRNA-based liquid biopsies for environmental health risk assessment: Insights into arsenic-induced hepatotoxicity. Science of the Total Environment (2025)
View DOI: 10.1016/j.scitotenv.2025.179825 - Spatial distribution, compositional profile, and risks of legacy and emerging PFASs in freshwater reservoirs. Science of the Total Environment (2023)
View DOI: 10.1016/j.scitotenv.2022.159144 - Arsenic and fluoride co-exposure through drinking water and their impacts on intelligence and oxidative stress among rural school-aged children. Environmental Geochemistry and Health (2021)
View DOI: 10.1007/s10653-021-01141-4 - Occurrence, source apportionment and potential risks of selected PPCPs in groundwater used as a source of drinking water. Science of the Total Environment (2022)
View DOI: 10.1016/j.scitotenv.2021.151010 - Transcriptome responses in blood reveal distinct biological pathways associated with arsenic exposure through drinking water. Environment International (2020)
View DOI: 10.1016/j.envint.2019.105403 - Integrating SNPs-based genetic
risk factor with blood epigenomic response of differentially arsenic-exposed rural subjects reveals
disease-associated signaling pathways. Environment Pollution (2022)
View DOI: 10.1016/j.envpol.2021.118279
Core Areas of Expertise
My Research on Water Contaminants
Video Lectures & Presentations
Dr. Yasir provides in-depth educational presentations on water contamination, treatment technologies, and health risks.
