Heavy metal levels (Pb, Cd, Cr and Hg) in the adult general population near an urban solid waste incinerator

Zubero, Miren Begoña; Aurrekoetxea, Juan José; Ibarluzea, Jesús; Arenaza, Maria Jesús; Rodríguez, C.; Sáenz, Joseph

doi:10.1016/j.scitotenv.2010.07.003

Cited by 63 publications

(18 citation statements)

References 20 publications

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“…It is notable, however, that living near a polluting facility may not necessarily result in an appreciable increase in exposure to cadmium. For instance, residential vicinity to an urban solid waste incinerator was not associated with blood and urinary cadmium in a Belgian study (Schroijen et al, 2008), and similar lack of association has been reported from Korea (Lee et al, 2012), Portugal (Reis et al, 2007), and Spain (Zubero et al, 2010). It has been documented that cadmium in outdoor air (Ciarrocca et al, 2015) and house dust (Hogervorst et al, 2007), some but not all of which would originate from waste facilities, are potentially important determinants of cadmium exposure.…”

Section: Discussionsupporting

confidence: 66%

Blood cadmium by race/hispanic origin: The role of smoking

Aoki

Yee

Mortensen

2017

Environmental Research

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Background There have been increasing concerns over health effects of low level exposure to cadmium, especially those on bones and kidneys. Objective To explore how age-adjusted geometric means of blood cadmium in adults varied by race/Hispanic origin, sex, and smoking status among U.S. adults and the extent to which the difference in blood cadmium by race/Hispanic origin and sex may be explained by intensity of smoking, a known major source of cadmium exposure. Methods Our sample included 7,368 adults from National Health and Nutrition Examination Survey (NHANES) 2011-2014. With direct age adjustment, geometric means of blood cadmium and number of cigarettes smoked per day were estimated for subgroups defined by race/Hispanic origin, smoking status, and sex using interval regression, which allows mean estimation in the presence of left- and right-censoring. Results Among never and former smoking men and women, blood cadmium tended to be higher for non-Hispanic Asian adults than adults of other race/Hispanic origin. Among current smokers, who generally had higher blood cadmium than never and former smokers, non-Hispanic white, black, and Asian adults had similarly elevated blood cadmium compared to Hispanic adults. A separate analysis revealed that non-Hispanic white adults tended to have the highest smoking intensity regardless of sex, than adults of the other race/Hispanic origin groups. Conclusions The observed pattern provided evidence for smoking as a major source of cadmium exposure, yet factors other than smoking also appeared to contribute to higher blood cadmium of non-Hispanic Asian adults.

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Section: Discussionsupporting

confidence: 66%

Blood cadmium by race/hispanic origin: The role of smoking

Aoki

Yee

Mortensen

2017

Environmental Research

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“…Microbial sequestering of heavy metals by the intestinal microbiota is strongly supported by studies that show that when these contaminants are consumed at much higher concentrations, there is a lower detection in clinical samples, excluding absorption and dilution factors (29,128). Only 40 to 60% of ingested metals are absorbed across the intestinal barrier into the body (113,120).…”

Section: Heavy-metal Measurement and Biosorption In The Human Bodymentioning

confidence: 97%

Bioremediation and Tolerance of Humans to Heavy Metals through Microbial Processes: a Potential Role for Probiotics?

Monachese

Burton

Reid

2012

Appl Environ Microbiol

276

142

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ABSTRACTThe food and water we consume are often contaminated with a range of chemicals and heavy metals, such as lead, cadmium, arsenic, chromium, and mercury, that are associated with numerous diseases. Although heavy-metal exposure and contamination are not a recent phenomenon, the concentration of metals and the exposure to populations remain major issues despite efforts at remediation. The ability to prevent and manage this problem is still a subject of much debate, with many technologies ineffective and others too expensive for practical large-scale use, especially for developing nations where major pollution occurs. This has led researchers to seek alternative solutions for decontaminating environmental sites and humans themselves. A number of environmental microorganisms have long been known for their ability to bind metals, but less well appreciated are human gastrointestinal bacteria. Species such asLactobacillus, present in the human mouth, gut, and vagina and in fermented foods, have the ability to bind and detoxify some of these substances. This review examines the current understanding of detoxication mechanisms of lactobacilli and how, in the future, humans and animals might benefit from these organisms in remediating environmental contamination of food.

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“…Heavy metal resistance genes (HMRGs) are a well-known example of such ARG selection systems (summarized by Baker-Austin et al, 2006), since they can indirectly support the maintenance of AR in the environment in the presence of heavy metals (HMs, Icgen and Yilmaz, 2014). Such HMs are released into the environment by industry, farming and other human activities (Zubero et al, 2010;Wang and Zang, 2014;Yang et al, 2014). The selective pressure exerted by this pollution allows HM resistant bacteria (HMRB) to survive and to preserve their genetic heritage comprising ARGs.…”

Section: Introductionmentioning

confidence: 99%