pesticide residues in the eggs of peregrine falcons and other wild bird species in...
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![Page 1: Pesticide Residues in the Eggs of Peregrine Falcons and Other Wild Bird Species in Baden-Württemberg Present State and Time Trend Dr. K. Theo von der Trenck,](https://reader036.vdocuments.mx/reader036/viewer/2022062620/551a64bf55034643688b4c6b/html5/thumbnails/1.jpg)
Pesticide Residues in the Eggs of Peregrine Falcons and Other Wild Bird Species in Baden-Württemberg
Present State and Time Trend
Dr. K. Theo von der Trenck, Referat 23 – Biomonitoring
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The German State of Baden-Wuerttemberg
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Ecological Effect Ecological Effect Survey ProgramSurvey Program
Media-EmbracingBiological Monitoring Network
State-wide measuring and assessment of
• Pollutant concentrations• Adverse effects• Species diversity• Climatic change
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Pollutants(DDT, HCB, HCEP, HCH, PBDE, PCB, PCDD/F)
Accumulation in Biota
Dangerous Effects Toxicity, Mutagenicity, Carcinogenicity, Teratogenicity, Endocrine DisruptionPersistence in the Environment
Necessity to monitor and control
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Pollutants and their Origin (e.g. DDT, HCB, HCEP, HCH, PBDE, PCB, PCDD/F)
Organochlorine Pesticidesagriculture, forestry, veterinary medicine, human medicine
PCBsinsulating materials in electrical capacitors and transformers,
plasticizers in waxes, paper manufacturing, hydraulic fluids and heat exchange fluids, components of flame retardants, sealants, and lacquers
PCDD/Fscombustion of organic materials (+ chlorine)HCBcombustion of organic materials (+ chlorine)
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Physical / Chemical Properties of POPs
• Low Water Solubility
• High Lipid Solubility
• High Resistence to Degradation
• Low Vapor Pressure
evaporation from aqueous solution
long range atmospheric transport
Global DistributionUbiquitous occurrence with marked bioaccumulation especially in
lipophilic compartments
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Global Distillation of POPs
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Stepwise Ban on Organochlorine Compounds in Germany
Dichlorodiphenyltrichloroethane (DDT) 1972
Aldrin, Dieldrin 1974
Hexachlorobenzene 1977
Technical Hexachlorocyclohexane (HCH) 1978
Endrin 1982
Heptachlor / Heptachloroepoxide 1982
Polychlorinated Biphenyls 1983
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Organochlorine Pollution of Eggs (2001): Peregrine Falcon > Eagle Owl > Barn Owl > Little Owl ≈ Jackdaw
> Great Tit ≈ Blue-Bonnet > Coal Tit
Terrestrial (Avian) Food Chain
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The peregrine falcon (Falco peregrinus) is the most highly polluted bird species within the project (Photo: B. Zoller).
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DDE in Peregrine Eggs - Time Trend
0
20
40
60
80
100
120
140
1,5
1,6
1,7
1,8
1,9
DDE [µg/g d. m. with std. dev., left scale] in eggs of peregrine falcons from Baden-Württemberg. The egg shell index (∆ right scale) is related to shell thickness.
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HCB in P. Falcon Eggs from Baden-Württemberg
1971
1973
1975
1977
1979
1981
1983
1985
1987
1989
1991
1993
1995
1997
1999
2001
2003
mg
/kg
TS
HCB in P. Falcon Eggs from Baden-Württemberg (inset)
0,0
0,1
0,2
0,3
0,4
0,5
0,6
0,7
0,8
0,9
1,0
1992
1994
1996
1998
2000
2002
mg
/kg
TS
---RHmV: 0.05 mg/kg
HCB in Peregrine Eggs - Time Trend
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Lindane in Peregrine Eggs - Time Trend
Lindan in Wanderfalkeneiern aus Baden-Württemberg
0,0
0,2
0,4
0,6
0,8
1,0
1967
1969
1971
1973
1975
1977
1979
1981
1983
1985
1987
1989
1991
1993
1995
1997
1999
2001
mg/
kg T
S
---RHmV: 0.3 mg/kg
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Heptachloroepoxide in Peregrine EggsTime Trend
0
2
4
6
8
10
12
14
µg
/g d
ry m
atte
r
0,0
0,1
0,2
0,3
0,4
0,5
0,6
0,7
0,8
19
85
19
86
19
87
19
88
19
89
19
90
19
91
19
92
19
93
19
94
19
95
19
96
19
97
19
98
19
99
20
00
20
01
20
02
20
03
---RHMV: 0.05 mg/kg
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PCB in Peregrine Eggs – Time Trend
PCB in Peregrine Falcon Eggs from Baden-Württemberg
0
20
40
60
80
100
120
140
1970
1972
1974
1976
1978
1980
1982
1984
1986
1988
1990
1992
1994
1996
1998
2000
2002
mg/
kg T
S
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Dioxin Equivalents in Selected Peregrine Eggs from Four Years
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DDE in Peregrine Eggs - Time Trend
0
20
40
60
80
100
120
140
1,5
1,6
1,7
1,8
1,9
DDE [µg/g d. m. with std. dev., left scale] in eggs of peregrine falcons from Baden-Württemberg. The egg shell index (∆ right scale) is related to shell thickness.
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Average Organochlorine Pollution of Peregrine Eggs from Six Ecoregions (2001 – 2003)
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Long term effects of DDT
DDT first synthesized in Germany 1874
65 years latency period
Discovery of DDT‘s insecticidal action (P. Müller) 1939
33 years action period
Peregrine falcons extinct in most German states
German ban on DDT 1972
33 years recovery period
Germany still troubled by DDT from remote continents 2005
DDT problem solved ????
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Pesticide Residues in the Eggs of Peregrine Falcons and Other Wild Bird Species in Baden-Württemberg
Present State and Time Trend
Friedrich Schilling (Nürtingen)Dr. Frank Baum, Dr. Rainer Malisch (Freiburg)Heiner Hartwig, Professor Dr. Ralf-D. Zimmermann (Bingen)Ruth Baumann, Dr. Hans-Peter Straub, Kurt Wildenmann (LfU)Dr. K. Theo von der Trenck, Referat 23 – Biomonitoring
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Substances Measured
Aldrin and its epoxide (dieldrin)ChlordanDichlorodiphenyltrichloroethane (DDT) and its metabolitesEndosulfanEndrinHexachlorobenzene (HCB)Heptachlor and its epoxide (HCEP) Different conformers of Hexachlorocyclohexane (HCH)21 congeners of polychlorinated biphenyls (PCBs)
Started in 2003: 9 congeners of polybrominated diphenyl ethers (PBDEs)