Identification of a new Irgarol-1051 related s-triazine species in coastal waters.
Environ Pollut
; 136(2): 221-30, 2005 Jul.
Article
em En
| MEDLINE
| ID: mdl-15840530
ABSTRACT
A previously unknown s-triazine species present in commercially available Irgarol-1051, a booster biocide additive in copper-based antifouling paints for the replacement of organotin-based antifoulants, has been identified in the coastal aquatic environment. After careful isolation, purification and characterization by high resolution MS-MS and (1)H NMR, the molecular structure of that unknown species is found to be N,N'-di-tert-butyl-6-methylthiol-s-triazine-2,4-diamine (designated as M3). Levels of Irgarol-1051, its major degradation product (M1) and the newly identified M3 in the coastal waters of Hong Kong, one of the world's busiest ports located in the southern coast of China, were monitored by SPME-GC-MS and SPME-GC-FID. Water samples from five locations within Hong Kong waters were analysed and the levels of Irgarol-1051, M1 and M3 were found to be 0.1-1.6 microg l(-1), 36.8-259.0 microg l(-1) and 0.03-0.39 microg l(-1), respectively. Our results indicate that M3 is relatively stable against photo- and bio-degradation and may pose considerable risk to primary producer communities in the coastal marine environment.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Triazinas
/
Poluentes Químicos da Água
/
Monitoramento Ambiental
/
Moluscocidas
Tipo de estudo:
Diagnostic_studies
Limite:
Animals
País/Região como assunto:
Asia
Idioma:
En
Ano de publicação:
2005
Tipo de documento:
Article