Sensitivity improvement of o-DGT for organic micropollutants monitoring in waters: Application to neutral pesticides

•An enlarged o-DGT design is evaluated for neutral pesticide monitoring in rivers•Study of compounds with a wide range of log Kow (0.43-3.95) and chemical functions•The Lo-DGT is as reliable as the conventional oDGT on both laboratory and field•5-fold sensitivity improvement proportionally to the increase of the sampling area•Lower LOQ of Lo-DGT improve water quality assessment by quantifying more compounds