scholarly journals Levels of polychlorinated biphenyls and organochlorine pesticides in serum samples of Egyptian Vulture (Neophron percnopterus) from Spain

Chemosphere ◽  
2004 ◽  
Vol 55 (4) ◽  
pp. 577-583 ◽  
Author(s):  
B. Gómara ◽  
L. Ramos ◽  
L. Gangoso ◽  
J.A. Donázar ◽  
M.J. González
Keyword(s):  
Polychlorinated Biphenyls ◽  
Organochlorine Pesticides ◽  
Serum Samples ◽  
Egyptian Vulture ◽  
Neophron Percnopterus

Egyptian Vulture (Neophron percnopterus)

2020 ◽  
Author(s):  
Jaume Orta ◽  
Guy M. Kirwan ◽  
David Christie ◽  
Ernest Garcia ◽  
Jeffrey S. Marks
Keyword(s):  
Egyptian Vulture ◽  
Neophron Percnopterus

scholarly journals Serum Concentrations of Selected Organochlorines in Pregnant Women and Associations with Pregnancy Outcomes. A Cross-Sectional Study from Two Rural Settings in Cambodia

2020 ◽  
Vol 17 (20) ◽  
pp. 7652
Author(s):  
Margit Steinholt ◽  
Shanshan Xu ◽  
Sam Ol Ha ◽  
Duong Trong Phi ◽  
Maria Lisa Odland ◽  
...  
Keyword(s):  
Polychlorinated Biphenyls ◽  
Pregnant Women ◽  
Gestational Age ◽  
Low Income ◽  
Cross Sectional Study ◽  
Maternal Serum ◽  
Sectional Study ◽  
Serum Samples ◽  
Cross Sectional ◽  
Rural Settings

We conducted a cross-sectional study among 194 pregnant women from two low-income settings in Cambodia. The inclusion period lasted from October 2015 through December 2017. Maternal serum samples were analyzed for persistent organic pollutants (POPs). The aim was to study potential effects on birth outcomes. We found low levels of polychlorinated biphenyls (PCBs) and organochlorine pesticides (OCP), except for heptachlors, β-hexachlorocyclohexane (HCH), heptachlor epoxide, and p,p’-DDE. There were few differences between the two study locations. However, the women from the poorest areas had significantly higher concentrations of p,p’-DDE (p < 0.001) and hexachlorobenzene (HCB) (p = 0.002). The maternal factors associated with exposure were parity, age, residential area, and educational level. Despite low maternal levels of polychlorinated biphenyls, we found significant negative associations between the PCB congeners 99 (95% CI: −2.51 to −0.07), 138 (95% CI: −1.28 to −0.32), and 153 (95% CI: −1.06 to −0.05) and gestational age. Further, there were significant negative associations between gestational age, birth length, and maternal levels of o,p’-DDE. Moreover, o,p’-DDD had positive associations with birth weight, and both p,p’-DDD and o,p’-DDE were positively associated with the baby’s ponderal index. The poorest population had higher exposure and less favorable outcomes.

scholarly journals Serum levels of organochlorine pesticides and polychlorinated biphenyls among inhabitants of Greater Metropolitan Rio de Janeiro, Brazil

2002 ◽  
Vol 18 (2) ◽  
pp. 519-524 ◽  
Author(s):  
Isabella Fernandes Delgado ◽  
Heloisa H.C. Barretto ◽  
Teresa A. Kussumi ◽  
Irene Baptista Alleluia ◽  
Cenira de A. Baggio ◽  
...  
Keyword(s):  
Detection Limit ◽  
Polychlorinated Biphenyls ◽  
Organochlorine Pesticides ◽  
Rio De Janeiro ◽  
Serum Lipids ◽  
Serum Levels ◽  
Electron Capture Detection ◽  
Persistent Organochlorine ◽  
Alpha Beta ◽  
Janeiro City

Levels of persistent organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) were determined in the blood serum of people living and working in the urban area of greater Rio de Janeiro city. Blood samples from 33 volunteers (16 males, 17 females, 19-63 years old) were taken in January 1999. OCP residues (op'DDT, pp'DDT, pp'DDD, pp'DDE, Aldrin, Dieldrin, Endrin, Heptachlor, Heptachlor-epoxide, alpha-, beta- and gamma-Hexachlorocyclo-hexane, Hexachlorobenzene) and PCBs (congeners: 28, 52, 101, 138, 153, 180) were extracted with n-hexane and analyzed by gas chromatography with electron capture detection. Except for pp'DDE (detection limit = 1.4µg/L) no other OCP residue was found in the samples. No PCB congener (detection limit = 2.0µg/L) was detected either. pp'DDE was found in 17 out of 33 samples in concentrations that ranged from 1.4 to 8.4 µg/L of serum or, on a fat basis, from 0.200 to 3.452 µg/g of serum lipids. Percentage of positive samples (%) and levels of pp'DDE (range of positive samples) increased from the youngest to the oldest group (<=29 yrs: 10%, 0.278µg/g; 30-39 yrs: 60%, 0.200-0.765µg/g; > or = 40 yrs: 77%, 0.257-3.452µg/g).

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