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Environmental fate & pathways

Monitoring data

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Administrative data

Endpoint:
monitoring data
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Study based on accepted scientific principles, well documented, acceptable fpr assessment
Cross-reference
Reason / purpose:
reference to other study

Data source

Reference
Reference Type:
publication
Title:
Unnamed
Year:
1989

Materials and methods

Principles of method if other than guideline:
Analytical investigation of historical soil samples
GLP compliance:
not specified
Type of measurement:
background concentration
Media:
soil

Test material

Reference
Name:
Unnamed
Type:
Constituent

Study design

Details on sampling:
- Geographic location: Rothamsted Experimental Station in southeast England (gris reference TL 120137), 42 km north of central London
semirural location under continuous arable cultivation (winter wheat) since 1843 at the Rothamsted Experimental Station ( Broadbalk Experiment).
- Soil type: neutral or slightly calcareous silty clay loams (batcombe series) with about 20 - 30 5 clay and 0.9 - 1.1 % C, primarily of quartz and calcite
- Known emission sources near sampling site: atmospheric fallout. Plant residues have always been ploughed back and never been burnt.
- Sampling: archive soils taken at various times since 1800s up to the present
- Sample storage before analysis: air-dried, ground in the same iron pestle and mortar and sieved to <2 mm after collection,
kept in the dark at room temperature in sealed glass containers

Results and discussion

Concentrationopen allclose all
Country:
United Kingdom
Location:
southeast England (gris reference TL 120137), 42 km north of central London
Substance or metabolite:
substance
Remarks:
anthracene
Conc.:
4.5 other: µg/kg dw
Remarks on result:
other: year 1846 / soil layer 0-23 cm
Country:
United Kingdom
Location:
southeast England (gris reference TL 120137), 42 km north of central London
Substance or metabolite:
substance
Remarks:
anthracene
Conc.:
13 other: µg/kg dw
Remarks on result:
other: year 1881 / soil layer 0-23 cm
Country:
United Kingdom
Location:
southeast England (gris reference TL 120137), 42 km north of central London
Substance or metabolite:
substance
Remarks:
anthracene
Conc.:
9 other: µg/kg dw
Remarks on result:
other: year 1893 / soil layer 0-23 cm
Country:
United Kingdom
Location:
southeast England (gris reference TL 120137), 42 km north of central London
Substance or metabolite:
substance
Remarks:
anthracene
Conc.:
4 other: µg/kg dw
Remarks on result:
other: year 1944 / soil layer 0-23 cm
Country:
United Kingdom
Location:
southeast England (gris reference TL 120137), 42 km north of central London
Substance or metabolite:
substance
Remarks:
anthracene
Conc.:
9 other: µg/kg dw
Remarks on result:
other: year 1966 / soil layer 0-23 cm
Country:
United Kingdom
Location:
southeast England (gris reference TL 120137), 42 km north of central London
Substance or metabolite:
substance
Remarks:
anthracene
Conc.:
13 other: µg/kg dw
Remarks on result:
other: year 1980 / soil layer 0-23 cm
Country:
United Kingdom
Location:
southeast England (gris reference TL 120137), 42 km north of central London
Substance or metabolite:
substance
Conc.:
11 other: µg/kg dw
Remarks on result:
other: year 1986 / soil layer 0-23 cm

Any other information on results incl. tables

The anthracene contaminations remained constant at a very low level over the decades, while higher molecular PAHs showed a clear increasing trend with peaking between 1950 – 1980.

Applicant's summary and conclusion