Environmental pathways of potential impacts to human health from oil and gas development in northeast British Columbia, Canada

2012 ◽  
Vol 20 (2) ◽  
pp. 122-134 ◽  
Author(s):  
Judi Krzyzanowski
Keyword(s):  
Heavy Metals ◽  
British Columbia ◽  
Human Health ◽  
Health Risks ◽  
Fossil Fuels ◽  
Oil And Gas ◽  
Oil And Gas Development ◽  
Volatile Organic ◽  
Actual Health ◽  
Water Borne

Concerns have arisen recently as to whether the upstream oil and gas (UOG) sector — responsible for exploration, production, and some processing of raw fossil fuels — is negatively impacting human (and environmental) health in northeast British Columbia (NEBC). The region has experienced increased rates of cancers and other illnesses that have been linked to the contaminants and stressors associated with UOG. Contaminants reach human receptors through environmental pathways, namely air, soil, water, and food. Each contaminant or stressor has specific sources, transport, exposure mechanisms, and biochemistry; and each can impact health both directly and indirectly. Of particular concern are airborne sulphur and nitrogen oxides, hazardous volatile organic compounds, hydrogen sulphide, ozone, noise, and radiation; as well as soil- or water-borne hydrocarbons, heavy metals, and radiation — some of which can also impact human health through food pathways. It has been determined that UOG is negatively impacting human health in NEBC; however, further information, such as environmental monitoring, is required before the actual health risks and impacts posed by UOG can be quantified.

Assessment of seasonal variations and human health risks due to heavy metals in water, soils and food crops using multi-indices approach

2021 ◽  
Vol 80 (11) ◽  
Author(s):  
Salwinder Singh Dhaliwal ◽  
Raj Setia ◽  
Vinod Kumar ◽  
Tapan Ghosh ◽  
Sagar Taneja ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Human Health ◽  
Health Risks ◽  
Seasonal Variations ◽  
Food Crops ◽  
Human Health Risks

Risk Assessment of Some Heavy Metals in Two Fish Species Oreochromis Niloticus and Clarias Gariepinus from Sharqia Province, Egypt

2021 ◽  
Vol 8 (1) ◽  
pp. 1-5
Author(s):  
Nahla S El-Shenawy ◽  
Heba N Gad EL-Hak ◽  
Mahi A Ghobashy ◽  
Maha FM Soliman ◽  
Farida A Mansour ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Human Health ◽  
Health Risks ◽  
Oreochromis Niloticus ◽  
Clarias Gariepinus ◽  
Human Health Risk ◽  
Dry Weight ◽  
Critical Problem ◽  
Potential Health

Accumulation of heavy metals in fish is considered a critical problem for human health. Therefore, the study aimed to quantify the concentrations of iron (Fe), zinc (Zn), manganese (Mn), and lead (Pb) in Oreochromis niloticus and Clarias gariepinus from two areas in Al Sharqia governorate, Egypt, from September 2017 to August 2018. A human health risk assessment was conducted to evaluate the potential hazards associated with fish consumption. Metals concentrations (mg/kg dry weight) in muscles of catfish ranged 1.88-221.26 for Fe; 1.78-19.77 for Zn; BDL-238.51 for Mn; BDL-22.75 for Pb. In muscles of tilapia fish metals concentrations ranged 7.96-149.10 for Fe; 1.20-19.77 for Zn; BDL-230.82 for Mn; BDL-25.93 for Pb. Pb had Hazard quotients (HQs) which indicated potential health risks to tilapia consumers at both study areas and catfish consumers at the Faqous area. Fishermen were at higher risk compared to the other consumers.

scholarly journals Potential Human Health Risks of Tannery Waste-contaminated Poultry Feed

2015 ◽  
Vol 5 (9) ◽  
pp. 68-77 ◽  
Author(s):  
Mohammad Latiful Bari ◽  
Hasina Akhter Simol ◽  
Nusrat Khandoker ◽  
Rokeya Begum ◽  
Ummay Nasrin Sultana
Keyword(s):  
Heavy Metals ◽  
Health Risk ◽  
Human Health ◽  
Health Risks ◽  
Daily Intake ◽  
Poultry Feed ◽  
Tannery Waste ◽  
Cr Content ◽  
Edible Parts ◽  
Potential Human Health

Background. For over a decade, solid tannery waste has been converted into protein concentrate and used as a feed ingredient because of its cheap availability. However, as chromium sulfate is commonly used in the tanning process, the chromium (Cr) content of tanned skin-cut wastes (SCW) may enter the edible parts of poultry through feed. Therefore, there is a chance that Cr and other heavy metals may be present in the edible portion of poultry and consequently transfer to humans upon poultry consumption. Objectives. In this study, skin-cut wastes (SCW)-based poultry feed and the edible parts of chicken fed with this feed were analyzed to understand the potential health risks of their use as poultry feed. Methods. In the present study, the presence of heavy metal content in SCW, poultry feed, and edible portions of different kinds of chicken was determined using atomic absorption spectrophotometer methods and the associated health risk estimation was calculated by comparing the target hazard quotient (THQ) value and reference daily intake value. Results. The results revealed the presence of Cr content ranging from 0.12–3.11 mg/kg and lead (Pb) content ranging from 8.06–22.0 mg/kg in SCW. In addition, Cr and Pb were present in the range of 0.27–0.98 mg/kg and 10.27–10.36 mg/kg, respectively, in poultry feed. However, no cadmium (Cd) was found in SCW, but the presence of Cd ranged from 0.03–0.05 mg/kg in feed. When contaminated poultry feed was fed to live poultry, the presence of Cr, Pb and Cd was observed in the edible portions (i. e. skin, liver, gizzard, and meat). Irrespective of the edible parts and chicken type, Cr values ranged from 0.1–2.440 mg/kg; Pb values ranged from 0.257–1.750 mg/kg; and Cd values ranged from below detection limit (BDL) to 0.037 mg/kg. Conclusions. The estimated daily intake value, THQ, along with the aggregate hazard index value, indicated a potential risk to consumers through consumption of contaminated chicken. Therefore, the study results clearly demonstrate heavy metals accumulation in chicken due to feeding SCW-based feed. The contaminated chicken further transfers these heavy metals to humans through ingestion. Hence, there is a potential human health risk through consumption of contaminated chicken meat.

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