Quantitatively assessing the health risk of exposure to PAHs from intake of smoked meats

2016 ◽  
Vol 124 ◽  
pp. 91-95 ◽  
Author(s):  
Jiafu Li ◽  
Han Dong ◽  
Xianguo Li ◽  
Bin Han ◽  
Chenjian Zhu ◽  
...  
Keyword(s):  
2020 ◽  
Author(s):  
Guimei Yu ◽  
Jiu Wang ◽  
Lei Liu ◽  
Yun Li ◽  
Yi Zhang ◽  
...  

Abstract Background:Nitrate is one of the most common chemical contaminants of groundwater, and it is an important unqualified factor of rural groundwater in Yantai. In order to assess the risk of exposure to drinking water nitrate for adults and juveniles, in recent years, we monitored the nitrate concentrations in rural drinking water,a model was also used to assess the human health risk of nitrate pollution in groundwater. Methods: From the year 2015 to 2018, the drinking water in rural areas of Yantai was tested according to the "Sanitary Standard for Drinking Water" (GB5749-2006). The principal component analysis was used to analyze the relationship between groundwater chemicals and nitrate. The model was used to assess human health risks of groundwater nitrate through the drinking water and skin contact. Results: A total of 2348 samples were tested during the year 2015-2018.Nitrate and total dissolved solids, total hardness, chloride are all relevant, the above indicators may come from the same source of pollution; The median nitrate content (CEXP50) was 17.8 mg / L; the risk of exposure in each group was ranked as: Juveniles > Adult female > Adult male;the median health risk (HQ50) for minors and adults exceed 1. Conclusions:The concentrations of nitrate is stable and does not change over time.The high concentration of nitrate in rural areas of Yantai may be the result of the interaction of fertilizers and geological factors. The risk of exposure to nitrate in juveniles and adults is above the limit, so it is necessary to be on the alert for the high levels of nitrate.


2020 ◽  
Vol 143 ◽  
pp. 105918 ◽  
Author(s):  
Hexing Wang ◽  
Dongjian Yang ◽  
Hongji Fang ◽  
Minghui Han ◽  
Chuanxi Tang ◽  
...  

2020 ◽  
Author(s):  
Guimei Yu ◽  
Song song Wang ◽  
Jiu Wang ◽  
Lei Liu ◽  
Yun Li ◽  
...  

Abstract Background: Nitrate is one of the most common chemical contaminants of groundwater, and it is an important unqualified factor of rural groundwater in Yantai. In order to assess the risk of exposure to drinking water nitrate for adults and juveniles, in recent years, we monitored the nitrate concentrations in rural drinking water, the HHRA model was also used to assess the human health risk of nitrate pollution in groundwater. Methods : From the year 2015 to 2018, the drinking water in rural areas of Yantai was tested according to the "Sanitary Standard for Drinking Water" (GB5749-2006). The principal component analysis was used to analyze the relationship between groundwater chemicals and nitrate. The HHRA model was used to assess human health risks of groundwater nitrate through the drinking water and skin contact. Results : A total of 2348 samples were tested during the year 2015-2018.Nitrate and total dissolved solids, total hardness, chloride are all relevant, the above indicators may come from the same source of pollution; The median nitrate content (C EXP50 ) was 17.8 mg / L; the C EXP95 was 53.4 mg / L; the risk of exposure in each group was ranked as: Juveniles > Adult female > Adult male;hazard quotient HQ 50 and HQ 95 for minors and adults exceed 1. Conclusions :The concentrations of nitrate is stable and does not change over time.The high concentration of nitrate in rural areas of Yantai may be the result of the interaction of fertilizers and geological factors. The risk of exposure to nitrate in juveniles and adults is above the limit, and HQ is over 1, so it is necessary to be on the alert for the high levels of nitrate.


2013 ◽  
Vol 47 (2) ◽  
pp. 335-344 ◽  
Author(s):  
Miriam dos Anjos Santos ◽  
Bruno Esteves Tavora ◽  
Sergio Koide ◽  
Eloisa Dutra Caldas

OBJECTIVE: To assess the health risk of exposure to benzene for a community affected by a fuel leak. METHODS: Data regarding the fuel leak accident with, which occurred in the Brasilia, Federal District, were obtained from the Fuel Distributor reports provided to the environmental authority. Information about the affected population (22 individuals) was obtained from focal groups of eight individuals. Length of exposure and water benzene concentration were estimated through a groundwater flow model associated with a benzene propagation model. The risk assessment was conducted according to the Agency for Toxic Substances and Disease Registry methodology. RESULTS: A high risk perception related to the health consequences of the accident was evident in the affected community (22 individuals), probably due to the lack of assistance and a poor risk communication from government authorities and the polluting agent. The community had been exposed to unsafe levels of benzene (> 5 µg/L) since December 2001, five months before they reported the leak. The mean benzene level in drinking water (72.2 µg/L) was higher than that obtained by the Fuel Distributer using the Risk Based Corrective Action methodology (17.2 µg/L).The estimated benzene intake from the consumption of water and food reached a maximum of 0.0091 µg/kg bw/day (5 x 10-7 cancer risk per 106 individuals). The level of benzene in water vapor while showering reached 7.5 µg/m3 for children (1 per 104 cancer risk). Total cancer risk ranged from 110 to 200 per 106 individuals. CONCLUSIONS: The population affected by the fuel leak was exposed to benzene levels that might have represented a health risk. Local government authorities need to develop better strategies to respond rapidly to these types of accidents to protect the health of the affected population and the environment.


Author(s):  
Tomomi Hoshiko ◽  
Fumiyuki Nakajima ◽  
Tassanee Prueksasit ◽  
Kazuo Yamamoto

Kinesik ◽  
2021 ◽  
Vol 8 (3) ◽  
pp. 226-233
Author(s):  
Tandiyo Pradekso ◽  
Djoko Setyabudi

The Covid-19 vaccination rate continues to increase, it is important to pay attention to the possibility of a breakthrough infection, which is a viral infection that occurs after a person has been vaccinated. This is a case that is expected to occur in some of those who have received the vaccine, as no vaccine for any disease is 100 percent effective. During the time of living in this period of the Covid-19 pandemic, people are always exposed to information about the dangers or threats of exposure to the virus, known as health risk messages. This study was conducted to explain how a number of individual characteristics in the health risk message information environment correlate to their attitudes towards the risk of exposing Covid-19. This online survey of people who have received the Covid-19 vaccine found that several variables related to lifestyle and disease history were correlated to perceptions of the risk of exposure to Covid-19. It also confirms that there is a positive correlation between awareness of the amount of risk an individual has and perceptions of the risk of exposing Covid-19.


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