Jul 8, 2019 Note: The traders are shown in the order of their world ranking in 2018. Ranking is based on total trade, calculated as the sum of exports and.... by S Zhou 2019 Cited by 81 Volume 128, July 2019, Pages 1-10 ... Pharmaceuticals detected in European surface waters were classified into 5 categories (high, moderate, endurable, negligible ... Chemicals were ranked according to maximum RQ values from high to low. ... Diclofenac residues as the cause of vulture population decline in