Trace Elements in sediment and tissue Benchmarks Used in Contaminant Exceedance Plots in the Heinz Center Report

The State of the Nation's Ecosystems

(See below for codes and references.)

NAME		AQCR*	RPTUNITS	AQCRSRC*
=======		====	========	====================
Arsenic		17	UG/G wsf	CAN-interim, PEL, FW
Cadmium		3.5	UG/G wsf	CAN-interim, PEL, FW
Chromium	90	UG/G wsf	CAN-interim, PEL, FW
Copper		197	UG/G wsf	CAN-interim, PEL, FW
Lead		91.3	UG/G wsf	CAN-interim, PEL, FW
Mercury		0.486	UG/G wsf	CAN-interim, PEL, FW
Selenium	4	UG/G wsf	NIWQP, Tox-thres
Zinc		315	UG/G wsf	CAN-interim, PEL, FW


# ###################################################################
#
#     * AQCR:  Aquatic Life Criteria:
#
#     * AQCRSRC Source Codes:  Source of data for AQCR attribute.
#      
#
#           CAN-interim, PEL, FW=Canadian interim sediment quality 
#              guideline for protection of aquatic life, probable effect 
#              level, freshwater value (for constituents in sediment)
#              (CCME, 1998; and Environment Canada, 1999b)
#
#
#           NIWQP, Tox-thresh=National Irrigation Water Quality Program, 
#              toxicity threshold
#              (NIWQP, 1998)
#
#
#       References:
#
#             Canadian Council of Ministers of the
#             Environment (CCME), 1998, Canadian sediment quality
#             guidelines for the protection of aquatic life:
#             Introduction and summary tables. In: Canadian
#             environmental quality guidelines, 1998,
#             Canadian Council of Ministers of the Environment,
#             Winnipeg, (http://www.ec.gc.ca/ceqg-rcqe).
#
#             Environment Canada, 1999b, Canadian
#             sediment quality guidelines for the protection of
#             aquatic life, Summary tables,
#                                     (http://www.ec.gc.ca/ceqg-rcqe/sediment.htm).
#
#             National Irrigation Water Quality Program (NIWQP), 1998,
#             Guidelines for interpretation of the biological effects of
#             selected constituents in biota, water, and sediment: U.S.
#             Department of the Interior, NIWQP Information Report
#             No. 3 (http:www.usbr.gov/niwqp/guidelines.html).
#

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