http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
유기농업자재 고삼, 님 및 데리스 추출물의 어류에 대한 독성과 위해성 평가
박경훈(Kyung-Hun Park),오진아(Jin-A Oh),백민경(Min-Kyoung Paik),손미연(Mi-Yeon Son),임정택(Joung-Taek Lim),진정화(Jung-hwa Jin),홍순성(Soonsung Hong),조남준(Nam-jun Cho),한상균(Sang-Gyun Han),김병석(Byung-Seok Kim) 한국농약과학회 2015 농약과학회지 Vol.19 No.3
Promoting the organic farming, much of the plant extracts used for controlling pests and fungi have been imported from China, India and Myanmar. But, it is so worrisome that aquatic animals such as muddy loach inhabiting in paddy field and common carps in river exposed to the pests and fungi likely be harmed. This study was conducted in order to evaluate the risks of aquatic animals influenced by the three plant extracts, i.e. Sophora flavescens, Azadirachta indica and Derris elliptica. The toxicities of common carp (Cyprinus Carpio), muddy loach (Misgurnus anguillicaudatus) and PEC (Predicted environmental concentration) exposed to the three plant extracts were estimated by the typical spray volume method. Risks were determined by the toxicity value as 48-hr LC50 (Lethal concentration, median) or NOEC (No observed effect concentration) into PEC. 48-hr LC<SUB>50</SUB> of Common carp and NOEC by Sophora flavescens extracts was 7.9 and 6.2 mg/L, 26.8 and 21.8 mg/L by Azadirachta indica extracts and 47.0 and < 24.0 mg/L by Derris elliptica extracts, respectively. 48-hr LC50 of Muddy loach and NOEC by Sophora flavescens extracts was 16.9 and 10.0 mg/L, 35.6 and 30.0 mg/L by Azadirachta indica extracts, and 73.9 and < 40 mg/L by Derris elliptica extracts, respectively. Therefore, acute toxicities of the three plant extracts for aquatic animals were proved to be very low level. PEC of Sophora flavescens extracts in paddy, drainage and river water was 68.0~3.0, 11.33~0.50 and 3.0~0.0018 mg/L, respectively. TER of Sophora flavescens extracts in the three water was 0.2~5.6, 1.5~33.8 and 2.6~4388.9, respectively. PEC of Azadirachta indica extracts in paddy, drainage and river water was 90.9~1.2, 15.2~0.2 and 4.8~0.00075 mg/L, respectively. TER of Azadirachta indica extracts in the three water was 0.4~29.7, 2.3~178.0 and 4.5~35733.3, respectively. PEC of Derris elliptica extracts in river water was 0.0063 mg/L. TER of Derris elliptica extracts in river water was 5222~15667.
유기농업자재 고삼, 님 및 데리스 추출물의 물벼룩에 대한 독성과 위해성 평가
박경훈(Kyung-Hun Park),오진아(Jin-A Oh),백민경(Min-Kyoung Paik),손미연(Mi-Yeon Son),임정택(Jeongtaek Im),한상균(Sang-Gyun Han) 한국농약과학회 2017 농약과학회지 Vol.21 No.2
Promoting the organic farming, much of the plant extracts used for controlling pests and fungus have been imported from China, India and Myanmar. But, it is so worrisome that water fleas inhabiting in paddy field, drainage canal and river exposed to the plant extracts likely be harmed. This study was conducted in order to evaluate the risks of water fleas influenced by the three plant extracts, i.e. Sophora flavescens, Azadirachta indica and Derris elliptica. The toxicities of water flea (Daphnia magna) and PEC (Predicted environmental concentration) exposed to the three plant extracts were estimated by the typical spray volume method. Risks were determined by the toxicity value as of 48-hr LC50 (Lethal concentration, median) or NOEC (No observed effect concentration) into PEC. 48-hr LC50 and NOEC of Daphnia magna by Sophora flavescens extracts was 17.6 and < 2 mg/L, 11.9 and < 2 mg/L by Azadirachta indica extracts and 49.4 and 5 mg/L by Derris elliptica extracts. Therefore, acute toxicities of the three plant extracts for Daphnia magna were proved to be low level. PEC of Sophora flavescens extracts in paddy, drainage and river water was 3.2~68, 0.53~11.33 and 0.0018~3.0 mg/L, respectively. TER of Sophora flavescens extracts in the three water was 0.2~4.0, 1.1~24 and 4.0~6666.7, respectively. PEC of Azadirachta indica extracts in paddy, drainage and river water was 1.2~90.9, 0.33~15.2 and 0.003~6.0 mg/L, respectively. TER of Azadirachta indica extracts in the three water was 0.1~9.9, 0.8~59.5 and 2.0~15866.7, respectively. PEC of Derris elliptica extracts in river water was 0.003~0.009 mg/L. TER of Derris elliptica extracts in river water was 555.6~166.7.