NDLI: Study on maximal allowable discharge amount of toxicant based on ecological risk

Content Provider	IEEE Xplore Digital Library
Author	Baolin Su Fei Yan
Copyright Year	2011
Description	Author affiliation: College of Water Sciences, Beijing Normal University, 100875 China (Baolin Su) \|\| Department of Environmental Science and Engineering, Tsinghua University, 100084 China (Fei Yan)
Abstract	Because of the absence of water quality standards, it is difficult to estimate maximal allowable discharge amount (MADA) into a river system for most toxicants. This paper introduces the procedure and methodology of ecological risk assessment to the research of MADA for toxicants. The Fuxi River in Ningbo City is taken as a case to study the MADA of toxicant acrylonitrile. The basic method is to calculate ecological risk under different discharge amount, and estimate MADA based on both risk values and water ecological standards. Two approaches are proposed in this paper: joint probability curve approach and total ecologic risk approach. MADA under different protection level and hazard probability is estimated through joint probability curve approach; MADA under different total ecological risk is estimated through total ecologic risk approach. The former can provide various standards for toxicants with complicated computation, and the latter has less reference value in determination of MADA due to the limited information though it is easy to compute.
Starting Page	3515
Ending Page	3518
File Size	277954
Page Count	4
File Format	PDF
ISBN	9781424494361
e-ISBN	9781424494392
DOI	10.1109/MACE.2011.5987750
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-07-15
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ecological risk Pollution Acrylonitrile Environmental capacity Maximal allowable discharge amount(MADA) Discharges Hazards Rivers Risk management Joints Standards
Content Type	Text
Resource Type	Article

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