Runoff of pharmaceuticals and personal care products following application of dewatered municipal biosolids to an agricultural field

摘要: Municipal biosolids are a useful source of nutrients for crop production, and commonly used in agriculture. In this field study, we applied dewatered municipal at commercial rate using broadcast application followed by incorporation. Precipitation was simulated 1, 3, 7, 21 34 days following the on 2 m(2) microplots to evaluate surface runoff various pharmaceuticals personal care products (PPCPs), namely atenolol, carbamazepine, cotinine, caffeine, gemfibrozil, naproxen, ibuprofen, acetaminophen, sulfamethoxazole, triclosan triclocarban. There little temporal coherence detection PPCPs runoff, compounds being detected maximally 7 or 36. Maximum concentrations ranged from below limit (gemfibrozil) 109.7 ng L(-1) (triclosan). Expressing total mass exported as percentage that applied, some analytes revealed transport potential ( 1% exported; atenolol). Those with had log K(ow) values 3.18 greater, whereas those were readily mobilized 2.45 less. Maximal all toxic variety endpoints available literature. summary, study has quantified land receiving biosolids, identified may be determinant these analytes, found maximal chemicals tested endpoints.