Acute toxicity and bio-concentration factor of three pesticides on Brachydanio rerio

Abstract

Abstract: The acute toxicity and bio-concentration factor of imidacloprid,triazophos and pyridaben were measured by using Brachydanio rerio as test organism.The 96 h LC₅₀ value of these pesticides was 281.37 mg·L^-1,8.37 mg·L^-1 and 11.66 μg·L^-1,respectively.The concentrations of pesticides and the exposure duration of 14 days for BCF tests were designed according to results of the acute toxicity tests and relevant guideline.At the exposure concentrations of 0.5 and 5 mg·L^-1,the bio-concentration factor (BCF) of imidacloprid was 1.52 and 0.97,respectively; while at the exposure concentrations of 0.02 and 0.2 mg·L^-1,that of triazophos was 9.00 and 8.45,respectively.For pyridaben,the BCF was respectively 5600 and 4920 at the exposure concentrations of 0.1 and 1μg·L^-1 .

Key words: Imidacloprid, Triazophos, Pyridaben, Byachydanio rerio, Acute toxicity, Bio-concentration

CLC Number:

X171.5

DING Zhonghai, YANG Yi, JIN Hongjun, SHAN Zhengjun, YU Hongxia, FENG Jianfang, ZHANG Xiaofeng, ZHOU Jiayan . Acute toxicity and bio-concentration factor of three pesticides on Brachydanio rerio[J]. Chinese Journal of Applied Ecology, 2004, (5): 888-890.

References

[1] Chen L-Y(陈良燕),Gong R-Z(龚瑞忠),Chen-R(陈锐).1998.Study on toxicity and safety evaluation of triazophos on three types of non-taget organisms.Pesticides Sci Admin(农药科学与管理),
[2] :10～13(in Chinese)2.Environmental Biology Staff Room .1989.Experimental Technologyand Methods of Environmental Biology.Nanjing:Nanjing University Press.64(in Chinese)
[3] Gary MR,James RC.2000.Hazard/Risk assessment of pyridaben Ⅰ .Aquatic toxicity and environmental chemistry.Ecotoxicology,9:157～168
[4] Gary MR,James RC.2000.Hazard/Risk assessment of pyridaben Ⅱ .Outdoor aquatic toxicity studies and the water effect ratio.Ecotozicology,9:169～177
[5] GongR-Z(龚瑞忠),Chen-R(陈锐),Chen L-Y(陈良.燕).1999.Evaluation on toxicity and safety of imidacloprid to environmental organisms.Pesticides Sci Admin(农药科学与管理),20(3):12～16(in Chinese)
[6] Kong Z-M(孔志明),Xu-C(许超).1995.Environmental Toxicology.Nanjing:Nanjing University Press.12(in chinese)
[7] Li S-N(李少南),1998.Acute toxicity of isofenphos-methyl and triazophos to 3 kinds of fresh water fish.Environ Poll Control(环境污染与防治),20(3):13～14(in Chinese)
[8] Liu F-Z(刘锋章).1998.Negative effects and hazard of pesticides to natural environment and human society.Shandong Environ(山东环境),85 :70(in Chinese)
[9] Lu X-X(卢晓霞),Tao-S(陶澍),Hu H-Y(胡海瑛).2000.Prediction of bioconcentration factors of organic compounds in fish by molecular connectivity indices and function correction factors.Chin J Appl Ecol(应用生态学报),11(2):277～282(in Chinese)
[10] National Environmental Protection Agency(国家环保局).1990.Guidelines for Testing of Chemicals.Bioconcentration Semi-Static Test.Beijing:Chemical Industry Press.324～332(in Chinese)
[11] National Environmental Protection Agency(国家环保局).1990.Guidelines for Testing of Chemieals-Fish Acute Toxicity Test.Beijing:Chemical Industry Press.189～196(in Chinese)
[12] Ruan L-Z(阮禄章),Zhang Y-M(张迎梅),Zhao D-Q(赵东芹),et al.2003.Egretta garzetta as s bioindicator of environmental pollution in Tai Lake region.Chin J Appl Ecol(应用生态学报),14(2):263～268(in Chinese)
[13] Shen G-X(沈国兴),Yan G-A(严国安),Peng J-L(彭金良),et al.1999.Ecotoxicology of pesticides to algae.Adv Environ Sci(环境科学进展),7(6):131～139(in Chinese)
[14] Tu Y-Q(屠豫钦).2001.Thinking about the question of pesticide and environment.Pesticides Sci Admin(农药科学与管理),22(3):32～36(in Chinee)
[15] Yan-X(严雪),Yang Y-Q(杨永清),Li Y-K(李永科),et al.2002.Accumulation and biodegradation of anthracene by Chlorella protothecoides under different trophic conditions.Chin y Appl Ecol(应用生态学报),13(2):145～150(in Chinese)