Organochlorine pesticides in eggs of two waterbird species (Fulica atra, Podiceps cristatus) from the same habitat: Reference site Lake Belau, Germany

Scharenberg, Wolfgang; Ebeling, E.

doi:10.1016/s0045-6535(97)10004-2

“…In general, piscivorous and omnivorous migratory birds accumulated higher levels of OCs than insectivores and granivores, but no notable trend was found. It has been pointed out in earlier studies that fish‐eating birds are capable of accumulating elevated OC concentrations [16,23,24]. The high capacity to accumulate persistent OCs in fish‐eating birds was related to their low hepatic microsomal monooxygenase activities, which are responsible for metabolism/detoxification of xenobiotics [25,26].…”

Section: Resultsmentioning

confidence: 99%

Persistent organochlorine residues and their bioaccumulation profiles in resident and migratory birds from North Vietnam

Minh

¹

,

Kunisue

²

,

Yen

³

et al. 2002

Enviro Toxic and Chemistry

View full text Add to dashboard Cite

Concentrations of persistent organochlorines (OCs), such as polychlorinated biphenyls (PCBs), 1,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane (DDT) and its metabolites (DDTs), hexachlorocyclohexane isomers (HCHs), hexachlorobenzene (HCB), and chlordane compounds (CHLs), were determined in whole-body homogenates of resident and migratory birds collected from the Red River estuary, North Vietnam, during March and October 1997. Contamination pattern was in the order of DDTs > PCBs > HCHs > CHLs > HCB in both resident and migratory birds. Residue concentrations, according to the feeding habit, showed little variability, which may reflect relatively similar trophic levels of the bird species analyzed. Resident birds accumulated greater concentrations of DDTs as compared to migrants. In contrast, HCH residues were greater in migratory species. Higher proportions of p,p'-DDT to total DDT concentrations were found in many species of residents and migrants, indicating recent exposure to technical DDT in northern Vietnam. Congener-specific PCB analysis showed the predominance of penta- and hexachlorobiphenyls in all the species analyzed. Estimation of hepatic microsomal enzyme activities suggested higher metabolic capacity for PCB congeners in shore birds from Vietnam as compared to higher-trophic predator birds and marine mammals. Comparison of OC residues in avian species in Asia-Pacific revealed that DDT residues in resident birds in North Vietnam are among the highest values reported for the countries surveyed, suggesting recent usage of DDT in Vietnam. Available data for birds, fish, and bivalves from the recent Asia-Pacific Mussel Watch Program suggested that Vietnam might be a potential source of DDT contamination in Asian developing countries. To our knowledge, this is the first study of the OC accumulation in avian species from Vietnam.

show abstract

“…The gamma isomer, commonly referred to as lindane, is the most prevalent and has the highest acute mammalian and insecticidal toxicity, and is used extensively for agricultural and public health purposes in India, and other developing countries. BHC was detected in air, water, sediments, soil, food, and drink, as well as in animals and humans (Waliszewski et al 1997;Ahmed et al 1998;Lebel et al 1998;Scharenberg and Ebeling 1998;Dubus et al 2000;Hanaoka et al 2002;Heudorf et al 2003;World Wildlife Fund 2003;Jaspers et al 2005;Masuda et al 2005;Chao et al 2006). Investigators reporting on the storage of the separate isomers in fatty tissue found that the beta isomer is the most predominant.…”

Section: Pesticidesmentioning

confidence: 99%

Persistent organic pollutants in human blood: A review of global data with a comparison to the Singapore population

Tan

¹

,

Loganath

²

,

Chong

³

et al. 2008

Toxicological & Environmental Chemistry

6

1

0

View full text Add to dashboard Cite

In this manuscript, the levels of persistent organic pollutants (POP) in human blood, as reported worldwide, are reviewed. A decline in blood residues of organochlorine pesticides (OCP) due to restrictions and prohibitions in their use was observed mainly since the second half of the 1970s. However, an increase of flame retardants levels, notably the polybrominated diphenyl ethers (PBDE), in human blood was reported in recent years. To date, no age or gender related trend were reported for brominated flame retardants -probably as a result of only recent exposure to PBDE relative to other POP such as polychlorinated biphenyls (PCB) and pesticides, and the shorter half-lives of PBDE. Blood levels of PBDE of individuals residing in the USA are substantially higher than those reported in Japan, Korea, and Germany. Congener specific profiles also differ in accordance with the prevailing use of different technical PBDE between countries. Higher blood concentrations in the USA may be attributed to the once widespread use of commercial penta-BDE on the North American continent. Preliminary data for POP levels in human blood in Singapore was reported and compared to global data. Generally, pesticide levels in Singapore are comparable to those found in other counties. The sum of 38 PCB congeners was 29 ng g À1 lipid, which was an order of magnitude higher than the sum of seven BDE congeners (2.6 ng g À1 lipid) measured in this study. The PBDE profile was consistent with many other blood studies conducted globally, and suggests a universally similar human exposure pattern to these contaminants.

show abstract

“…In migratory birds, in general, piscivores and omnivores accumulated higher levels of OCs than insectivores and granivores, but no significant trend was found. It has been pointed out in earlier studies that fish-eating birds are capable of accumulating elevated OC concentrations [15,21,22]. This feature was characterized by relatively low hepatic microsomal monooxygenase activities, which are responsible for metabolism/detoxification of xenobiotics in birds [23,24].…”

Section: Resultsmentioning

confidence: 98%

Persistent Organochlorine Residues and Their Bioaccumulation Profiles in Resident and Migratory Birds From North Vietnam

Minh

¹

,

Kunisue

²

,

Yen

³

et al. 2002

Environ Toxicol Chem

View full text Add to dashboard Cite

Concentrations of persistent organochlorines (OCs), such as polychlorinated biphenyls (PCBs), 1,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane (DDT) and its metabolites (DDTs), hexachlorocyclohexane isomers (HCHs), hexachlorobenzene (HCB), and chlordane compounds (CHLs), were determined in whole-body homogenates of resident and migratory birds collected from the Red River estuary, North Vietnam, during March and October 1997. Contamination pattern was in the order of DDTs > PCBs > HCHs > CHLs > HCB in both resident and migratory birds. Residue concentrations, according to the feeding habit, showed little variability, which may reflect relatively similar trophic levels of the bird species analyzed. Resident birds accumulated greater concentrations of DDTs as compared to migrants. In contrast, HCH residues were greater in migratory species. Higher proportions of p,p'-DDT to total DDT concentrations were found in many species of residents and migrants, indicating recent exposure to technical DDT in northern Vietnam. Congener-specific PCB analysis showed the predominance of penta- and hexachlorobiphenyls in all the species analyzed. Estimation of hepatic microsomal enzyme activities suggested higher metabolic capacity for PCB congeners in shore birds from Vietnam as compared to higher-trophic predator birds and marine mammals. Comparison of OC residues in avian species in Asia-Pacific revealed that DDT residues in resident birds in North Vietnam are among the highest values reported for the countries surveyed, suggesting recent usage of DDT in Vietnam. Available data for birds, fish, and bivalves from the recent Asia-Pacific Mussel Watch Program suggested that Vietnam might be a potential source of DDT contamination in Asian developing countries. To our knowledge, this is the first study of the OC accumulation in avian species from Vietnam.

show abstract

Organochlorine pesticides in eggs of two waterbird species (Fulica atra, Podiceps cristatus) from the same habitat: Reference site Lake Belau, Germany

Cited by 19 publications

References 10 publications

Persistent organochlorine residues and their bioaccumulation profiles in resident and migratory birds from North Vietnam

Persistent organochlorine residues and their bioaccumulation profiles in resident and migratory birds from North Vietnam

Persistent organic pollutants in human blood: A review of global data with a comparison to the Singapore population

Persistent Organochlorine Residues and Their Bioaccumulation Profiles in Resident and Migratory Birds From North Vietnam

Contact Info

Product

Resources

About