title: Seasonal effects on concentrations of monomethylformamide in urine samples.
abstract: Eleven du Pont operators participated in a special dimethylformamide metabolite (monomethylformamide, MMF) urine monitoring study to investigate a possible seasonal influence on urine metabolite concentrations. Variables considered included urine volume, MMF concentration, MMF mass, urine specific gravity, and ambient temperature. Statistical analysis revealed a 13% reduction in urine volume under hot weather conditions as a cause of increased MMF concentrations. A correction for this change in urine volume should be made subjectively.
mesh_terms: D004126:Dimethylformamide / Q000378:metabolism; D004781:Environmental Exposure; D005559:Formamides / Q000652:urine*; D006801:Humans; D012621:Seasons; D013696:Temperature; D014556:Urine
chemical_list: D005559:Formamides; D004126:Dimethylformamide; C002950:methylformamide