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首页> 外文期刊>Marine pollution bulletin >Long term monitoring of photosystem II herbicides - Correlation with remotely sensed freshwater extent to monitor changes in the quality of water entering the Great Barrier Reef, Australia
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Long term monitoring of photosystem II herbicides - Correlation with remotely sensed freshwater extent to monitor changes in the quality of water entering the Great Barrier Reef, Australia

机译:长期监测光系统II除草剂-与遥感淡水范围的相关性,以监测进入澳大利亚大堡礁的水质变化

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摘要

Photosystem II (PSII) herbicides are used in large quantities on agricultural lands adjoining the Great Barrier Reef (GBR). Routine monitoring at 14 sites in inshore waters of the GBR using passive sampling techniques detected diuron (32-94% of sampling periods) at maximum concentrations of 1.7-430 ng L~(-1) in the relatively pristine Cape York Region to the Mackay Whitsunday Region, respectively. A PSII herbicide equivalent (PSII-HEq) index developed as an indicator for reporting was dominated by diuron (average contribution 89%) and typically increased during the wet season. The maximum PSII-HEq indicates the potential for photosynthetic inhibition of diatoms, seagrass and coral-symbionts. PSII herbicides were significantly positively correlated with remotely sensed coloured dissolved organic matter, a proxy for freshwater extent. Combining these methods provides for the first time the potential to cost-effectively monitor improvements in water quality entering the GBR with respect to exposure to PSII herbicides.
机译:光系统II(PSII)除草剂在大堡礁(GBR)毗邻的农田上大量使用。使用被动采样技术对GBR近岸水域的14个站点进行例行监测,检测到相对原始的约克角至Mackay地区最大浓度为1.7-430 ng L〜(-1)的敌草隆(采样周期的32-94%)圣灵降临节地区。作为报告指标而开发的PSII除草剂当量(PSII-HEq)指数以敌草隆(平均贡献89%)为主导,通常在雨季有所增加。最大的PSII-HEq表示有可能对硅藻,海草和珊瑚共生体进行光合作用抑制。 PSII除草剂与遥感的有色溶解有机物(淡水范围的替代物)显着正相关。结合使用这些方法,首次使人们有可能经济有效地监测进入PSR除草剂的进入GBR的水质的改善。

著录项

  • 来源
    《Marine pollution bulletin》 |2012年第9期|p.292-305|共14页
  • 作者单位

    The University of Queensland, The National Research Centre for Environmental Toxicology (Entox), Coopers Plains, Brisbane, QLD 4108, Australia,P.O. Box 594. Archerfield, QLD 4108. Australia;

    CSIRO Land & Water, Brisbane, QLD 4102, Australia;

    Department of Environment and Resource Management, Dutton Park, Brisbane, QLD 4102, Australia;

    Secretariat of the Pacific Regional Environment Programme, Apia, Samoa;

    Australian Centre for Tropical Freshwater Research, James Cook University, Townsville, QLD 4811, Australia;

    The University of Queensland, The National Research Centre for Environmental Toxicology (Entox), Coopers Plains, Brisbane, QLD 4108, Australia;

    The University of Queensland, The National Research Centre for Environmental Toxicology (Entox), Coopers Plains, Brisbane, QLD 4108, Australia;

    Queensland Health Forensic and Scientific Services, Coopers Plains, Brisbane, QLD 4108, Australia;

    CSIRO Land & Water, Canberra, ACT 2601, Australia;

    The University of Queensland, The National Research Centre for Environmental Toxicology (Entox), Coopers Plains, Brisbane, QLD 4108, Australia,Queensland Bulk Water Supply Authority, Seqwater, Margaret Street, Brisbane, QLD 4000, Australia;

    The University of Queensland, The National Research Centre for Environmental Toxicology (Entox), Coopers Plains, Brisbane, QLD 4108, Australia;

    The University of Queensland, The National Research Centre for Environmental Toxicology (Entox), Coopers Plains, Brisbane, QLD 4108, Australia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    passive sampling; diuron; coloured dissolved organic matter; MODIS;

    机译:被动采样;敌草隆有色溶解有机物;莫迪斯;

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