Current-use pesticides in stream water and suspended particles following runoff: Exposure, effects, and mitigation requirements

The European Union's directive for sustainable use of pesticides requires implementing risk mitigation measures at streams threatened by pesticide entries. The need for mitigation measures was investigated at 10 stream sites within an intensively used arable region in central Germany by charact...

Full description

Saved in:
Bibliographic Details
Published in:Environmental toxicology and chemistry 2013-06, Vol.32 (6), p.1254-1263
Main Authors: Bereswill, Renja, Streloke, Martin, Schulz, Ralf
Format: Article
Language:English
Subjects:
Animal and plant ecology
Animal, plant and microbial ecology
Animals
Applied ecology
Aquatic life
Biological and medical sciences
Creeks & streams
Daphnia
Ditches
Ecotoxicology, biological effects of pollution
Edge-of-field runoff
Environmental Monitoring
Environmental Restoration and Remediation
EU directives
Fresh water ecosystems
Fundamental and applied biological sciences. Psychology
General aspects
Germany
Insecticides
Invertebrates
Macroinvertebrates
Pesticide application
Pesticides
Pesticides - analysis
Pesticides - toxicity
Pyrethroid insecticides
Pyrethroids
Rills
Risk reduction
Rivers - chemistry
Runoff
Sediment
Surface water
Sustainable use
Synecology
Toxicity Tests
Toxicology
Water Movements
Water Pollutants, Chemical - analysis
Water pollution
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The European Union's directive for sustainable use of pesticides requires implementing risk mitigation measures at streams threatened by pesticide entries. The need for mitigation measures was investigated at 10 stream sites within an intensively used arable region in central Germany by characterizing pesticide exposure following edge‐of‐field runoff and effects on the aquatic macroinvertebrates. Moreover, the influence of riparian buffer strip width (as a mitigation measure) at the sampling sites was considered. Generally, invertebrate fauna was dominated by pesticide‐tolerant species, suggesting a high pesticide exposure at almost all sites. This result is also reflected by the elevated levels of suspended particle contamination in terms of toxic units (logTUMax > −2), corresponding to one‐hundredth of the median lethal concentration (LC50) to Daphnia magna. At two sites that received high aqueous‐phase entries of the pyrethroid lambda‐cyhalothrin (logTUMax > −0.6), the abundance and number of sensitive species in terms of the species at risk index decreased during the pesticide application period. In contrast, no acute significant negative effects on macroinvertebrates were observed at sites characterised by low water‐phase toxicity (logTUMax 
ISSN:0730-7268
1552-8618
DOI:10.1002/etc.2170