Recent state of lindane metabolism

Engst, R.; Macholz, R.; Kujawa, M.

doi:10.1007/978-1-4612-6355-5_3

Cited by 25 publications

(11 citation statements)

References 82 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This is higher than the losses calculated above (30%) for horizontal atmospheric movement from the site. The difference may have been due to microbial degradation of γ‐HCH (Engst et al, 1977, 1979), leaching below the soil sampling zone (Ehlers et al, 1969a,b), or to vertical atmospheric losses not accounted for by the measurements made in this study.…”

Section: Resultsmentioning

confidence: 85%

Atmospheric Movements of Lindane (γ‐Hexachlorocyclohexane) from Canola Fields Planted with Treated Seed

Waite

Gurprasad²,

Sproull³

et al. 2001

J of Env Quality

View full text Add to dashboard Cite

Lindane (gamma-hexachlorocyclohexane [gamma-HCH]) is used as an insecticide in many countries. Concentrations of gamma-HCH have been found in air, water, soil, snow, and tissue samples throughout the world and concerns have been raised for its potential effects on human and ecosystem health. In Canada, gamma-HCH is primarily used as a treatment on canola (Brassica napus L) seed with an estimated 455.3 Mg applied in 1997 and 510.4 Mg in 1998. The purpose of this study was to measure gamma-HCH volatilization from fields planted with treated canola seed. Atmospheric dry and wet deposition and soil samples were collected for two growing seasons (1997 and 1998) from a canola field planted with treated seed. Atmospheric concentrations as high as 16.1 and 7.4 ng m(-3) were measured at 1 m above the canola field compared with maximum concentrations of 2.9 and 2.7 ng m(-3) measured above a grass field located 2 km away (1997 and 1998, respectively). On the basis of measurements made in this study it was estimated that between 12 and 30% of the gamma-HCH applied as canola seed treatment may volatilize and be released to the atmosphere. This would create an atmospheric loading of 66.4 to 188.8 Mg for the 6-wk period following planting, estimated from the quantity of seed sown on the Canadian prairies in 1998. Dry deposition rates and rain concentrations as high as 2,203 ng m(-2) d(-1) and 170 ng L(-1) were measured adjacent to the canola field.

show abstract

Section: Resultsmentioning

confidence: 85%

Atmospheric Movements of Lindane (γ‐Hexachlorocyclohexane) from Canola Fields Planted with Treated Seed

Waite

Gurprasad²,

Sproull³

et al. 2001

J of Env Quality

View full text Add to dashboard Cite

show abstract

“…An excellent review of lindane (= y-HCH) metabolism by soil microorganisms, ...... plants and warm-blooded animals were published by ENGST et al (1977ENGST et al ( , 1979.…”

Section: Intermediate Products Of Y-hch Decompositionmentioning

confidence: 99%

Isolation and identification of an aerobic γ-HCH-decomposing bacterium from soil

Senoo

Wada

1989

Soil Science and Plant Nutrition

139

View full text Add to dashboard Cite

“…The results obtained so far allow only some suggestions on metabolic pathways of 14C-7-HCH in the experimental system. Although 7-HCH is known to undergo a number of metabolic transformations in soil microbes, plants, and mammals (Engst et al, 1977(Engst et al, , 1979, only little knowledge exists about its transformation in aquatic organisms. The formation of 1,3,4,5,6,-pentachlorocyclohexene-(1) is described by Sweeney (1969) for unicellular freshwater algae.…”

Section: Eliminationmentioning

confidence: 99%

Accumulation and elimination of14C-γ-HCH (lindane) inNereis virens (Polychaeta) with consideration of metabolites

Goerke

Ernst

1980

Helgolander Meeresunters

View full text Add to dashboard Cite

In two experiments, conducted at 6 ~ and 16 ~ 43 Nereis virens were exposed to 14Clabelled y-HCH (lindane) at a concentration of 1 pg/1, which was maintained by intermittent monitoring and redosing. A closed system with individuals living in glass tubes was used. At equilibrium and during the subsequent phase of elimination, both ~,-HCH and metabolites were determined in individual worms as well as in the water and faeces throughout the entire experiment. The bioconcentration factors of ?-HCH were 480 and 440 at 6 ~ and 16 ~ respectively; those based on total radioactivity were 500 and 410. These factors were in the upper range of those known for other aquatic animals. The elimination may be described by an exponential function. The initial 50 % decrease of y-HCH and N-HCH + metabolites in the worms occurred at both temperatures in 2 and 3 days, respectively. The percentage of y-HCH metabolites in worms increased considerably during the elimination period. At least four metabolites were detected in worms and water. If pollutants are evaluated by accumulation and elimination kinetics, metabolization has to be taken into account.

show abstract

Recent state of lindane metabolism

Cited by 25 publications

References 82 publications

Atmospheric Movements of Lindane (γ‐Hexachlorocyclohexane) from Canola Fields Planted with Treated Seed

Atmospheric Movements of Lindane (γ‐Hexachlorocyclohexane) from Canola Fields Planted with Treated Seed

Isolation and identification of an aerobic γ-HCH-decomposing bacterium from soil

Accumulation and elimination of14C-γ-HCH (lindane) inNereis virens (Polychaeta) with consideration of metabolites

Contact Info

Product

Resources

About