Effect of humic acid on the bioavailability of gamma-hexachlorocyclohexanein Marsilea minuta (L.)

Authors
Misra, V Pandey, SD Viswanathan, PN
Citation
V. Misra et al., Effect of humic acid on the bioavailability of gamma-hexachlorocyclohexanein Marsilea minuta (L.), ENV MON ASS, 61(2), 2000, pp. 229-235
Citations number
30
Categorie Soggetti
Environment/Ecology
Journal title
ENVIRONMENTAL MONITORING AND ASSESSMENT
ISSN journal
01676369 → ACNP
Volume
61
Issue
2
Year of publication
2000
Pages
229 - 235
Database
ISI
SICI code
0167-6369(200003)61:2<229:EOHAOT>2.0.ZU;2-R
Abstract
Effect of various concentrations of humic acid (0.2 to 1%) on the bioavaila bility of gamma-HCH in vegetative clones of the aquatic fern Marsilea minut a was studied in a static experimental bioassay system on different photope riods. Addition of humic acid showed the reduction in the bioavailability o f gamma-HCH in all the photoperiods (72 hr light to 144 hr light) at the in terval of 16 hr light (L) and 8 hr dark (D) in both aerial and submerged po rtion as compared to control indicating its protective role in toxicity.