Survey of Persistent Organochlorine Contaminants (PCBs, PCDD/Fs, and PAHs), Heavy Metals (Cu, Cd, Zn, Pb, and Hg), and Arsenic in Food Samples From Huelva (Spain):  Levels and Health Implications

2004 ◽  
Vol 52 (4) ◽  
pp. 992-1001 ◽  
Author(s):  
Luisa R. Bordajandi ◽  
Gema Gómez ◽  
Esteban Abad ◽  
Josep Rivera ◽  
María del Mar Fernández-Bastón ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Food Samples ◽  
Persistent Organochlorine ◽  
Health Implications ◽  
Organochlorine Contaminants

scholarly journals Safety Assessment of the Presence of Heavy Metals and Organic Pollutants in Vended Street Foods from Selected Locations in Lagos State Nigeria

2020 ◽  
pp. 109-120
Author(s):  
G. I. Oyet ◽  
C. B. Samuel
Keyword(s):  
Heavy Metals ◽  
Particulate Matter ◽  
Organic Pollutants ◽  
Food Samples ◽  
Lead Content ◽  
Food Type ◽  
Street Food ◽  
Detectable Limit ◽  
Volatile Organic ◽  
Lagos State

This study was aimed at investigating the presence of heavy metals and volatile organic pollutants in street-vended foods sourced from three selected locations in Lagos State, Nigeria, to ascertain their safety level. The study was carried out using complete randomization design and Cluster sampling technique to source vended street foods from three locations (Marina, Yaba and Apapa). The eight Food products studied were roasted (plantain, fish, yam, corn), suya meat, meat pie, egg roll and doughnuts. Lead, Cadmium, Copper, Mercury, Iron, Zinc and organic pollutants in Foods and particulate matter in Environment were examined. Heavy metals detected in vended street foods from Marina, Yaba and Apapa Lagos were; iron, copper, lead and zinc, at level ranging from 0.14 mg/kg–2.80 mg/kg, 0.08 mg/kg – 0.27 mg/kg, 0.01 mg/kg – 0.18 mg/kg, and 0.01 mg/kg – 0.04 mg/kg, respectively. Mercury and Cadmium were below detectable limit. Significantly (P<0.05) higher iron presence of 2.80 mg/kg and 1.99mg/kg were respectively, noticed in suya from Apapa and roasted fish also from Apapa. Significantly (P<0.05) higher lead (Pb) content of 0.18 mg/kg was observed in dough nut from Yaba, however, roasted plantain, roasted fish and meat pie all sourced from Yaba gave significantly (P<0.05) lower lead content of 0.01mg/kg. The Zinc content of roasted fish, suya and egg roll sourced from Marina, Yaba and Apapa were all significantly (P<0.05) difference, with particular respect to food type. Higher iron content of 2.80 mg/kg was noticed in suya from Apapa. Volatile organic compounds (TPH, PAHs, Phenol) were observed to be below detectable limit (<0.001 mg/kg) in all the vended street food samples. Particulate matter in air; SPM, PM1, PM2.5, PM10 and VOCs ranged from 0.34 – 0.84 mg/m3, 0.32 – 0.56 mg/m3, 0.32 – 0.68 mg/m3, 0.33 – 0.79 mg/m3 and <0.001 – 0.24 mg/m3, respectively. PM1 and PM25 from the three locations were not statistically significant (P>0.05). All the vended food samples had lead (Pb) content above the CODEX permissible limit of 0.01 mg/kg. The presence of high lead content in Vended Street food is a major source of occupational health hazards.

scholarly journals A review of the health implications of heavy metals and pesticide residues on khat users

2021 ◽  
Vol 45 (1) ◽  
Author(s):  
Albert M. Oyugi ◽  
Joshua K. Kibet ◽  
John O. Adongo
Keyword(s):  
Heavy Metals ◽  
Food Chain ◽  
The Body ◽  
Control Measures ◽  
World Health ◽  
Health Concern ◽  
Main Body ◽  
Farming Practices ◽  
Health Implications ◽  
The World

Abstract Background There is an exponential rise in the use of farming chemicals in agricultural practices ostensibly to increase food production. The chewing of fresh khat leaves and shoots has spread across the world from ancient khat producing regions in East Africa and the Arabian Peninsula. Khat is a well-established socialization substance with stimulating characteristics. In this work, we have reviewed the deleterious impacts of several heavy metals such as lead, cadmium, iron in the khat plant and their health impacts. Survey on the health complications of farming chemicals used in khat production is also presented. Main body of the abstract The toxic effects of heavy metals and farming chemicals in plant matter such as khat leaves are a serious health concern. Heavy metals including cadmium (Cd) and lead (Pb), for instance, bio-accumulate in the body and the food chain as precursors for disease. It has been established that blood that has lead levels of 40–60 ug/dL is a precursor for serious health illnesses such as cardiac arrest and cancer. On the other hand, cadmium is reported to bind itself onto metallothioneins hence forming cadmium–metallothionein complex that is transported to all body organs causing deleterious cell damage. The entry of farming chemical into the food chain especially via the chewing of contaminated khat has been known to contribute to health problems such as cancer, hypertension and liver cirrhosis. khat is branded a ‘substance of abuse’ by the World Health Organization (WHO) because of the adverse health risks it causes to humans. Relevant articles published between 2010 and 2021, and archived in PubMed, Google Scholar, Medley, Cochrane, and Web of Science were used in this review. Short conclusion The health implications of heavy metals and farming chemicals arising from the consumption of contaminated khat shoots are a serious concern to the khat chewing community. Consequently, there is need to develop better farming practices that may minimize the absorption of heavy metals and farming chemicals by the khat plant. Information presented in this review is also important in sensitizing policy makers to advance control measures towards safer khat farming practices.

scholarly journals Concentrations of selected persistent organochlorine contaminants in store-bought foods from northern Alaska

2005 ◽  
Vol 64 (4) ◽  
pp. 303-313 ◽  
Author(s):  
Todd M. O’Hara ◽  
Paul F. Hoekstra ◽  
Cyd Hanns ◽  
Sean M. Backus ◽  
Derek C. G. Muir
Keyword(s):  
Persistent Organochlorine ◽  
Organochlorine Contaminants ◽  
Northern Alaska
Sign in / Sign up

Export Citation Format

Share Document