Prevalence of Eight Phthalate Monoesters in Water from the Okavango Delta, Northern Botswana.
Bull Environ Contam Toxicol
; 103(2): 274-279, 2019 Aug.
Article
en En
| MEDLINE
| ID: mdl-31101930
ABSTRACT
Phthalate diesters are used in personal care products, plastics, and pesticides, resulting in widespread human and wildlife exposure. Phthalate diesters leach out of these products and ultimately enter biological systems where they are quickly metabolized to phthalate monoesters and glucuronides. As such, phthalate monoesters can serve as indicators of anthropogenic activity in wilderness areas. The Okavango Delta, an inland seasonal wetland covering 5000-12,000 km2 in Botswana, provides fresh water to many species of birds, fish, reptiles, and large mammals. Water samples (N = 46) were taken from across the Okavango water system, extracted, and analyzed for eight different phthalate monoesters using liquid chromatography and isotope dilution mass spectrometry. Seven of eight phthalate monoesters were detected from the low ng/L to low µg/L levels. Phthalate monoesters were found in samples from all five sampling regions. Sources of these contaminants are unknown, but their presence indicates encroachment of human activity on the Okavango Delta.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Ácidos Ftálicos
/
Contaminantes Químicos del Agua
/
Monitoreo del Ambiente
/
Ríos
/
Humedales
/
Agua Dulce
Tipo de estudio:
Prevalence_studies
/
Risk_factors_studies
Límite:
Humans
País/Región como asunto:
Africa
Idioma:
En
Revista:
Bull Environ Contam Toxicol
Año:
2019
Tipo del documento:
Article
País de afiliación:
Estados Unidos