Trace Elements in sediment and tissue Benchmarks Used in the Appendix Graphs
in the NAWQA Summary Reports, 2004
(See below for codes and references.)
NAME AQCR* Report_Units 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
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#
# * 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)
#
##
# NIWQP, Tox-thresh = National Irrigation Water Quality Program,
# toxicity threshold (for constituents in sediment). The NIWQP
# guideline for Selenium is to be applied only in the western U.S.,
# including the Rockies.
#
#
#
# References for ecological benchmarks:
#
#
# CAN-interim, PEL, FW and CAN-interim, prov-PEL are from CCME (2001b).
#
# NIWQP, Tox-thresh is from NIWQP (1998).
#
#
# Canadian Council of Ministers of the Environment (CCME), 2001b,
# Canadian sediment quality guidelines for the protection of aquatic
# life: Summary tables. Updated. In: Canadian environmental quality
# guidelines, 1999, updated 2001, CCME, Winnipeg
# (http://www.ec.gc.ca/ceqg-rcqe/English/Ceqg/Sediment/default.cfm).
#
#
# 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).
#
# #############################################################################