scholarly journals Assessing the risk of lead exposure to children from drinking water in Metro Vancouver child care facilities

Author(s):  
Thomas Quach ◽  
BCIT School of Health Sciences, Environmental Health ◽  
Helen Heacock ◽  
Reza Afshari

  Background: Environmental lead exposure has been a concern since the early 1970’s. With the reduction of airborne lead for inhalation, ingestion from food and water has become the major route of exposure leading to elevated blood lead levels. Previous research and the recent lead contamination of drinking water in Flint, Michigan demonstrate the vulnerability of young children and potential for exposure through drinking water. The purpose of this study was to assess and characterize the risk of lead contamination of drinking water for Metro Vancouver-area early childhood care facilities, and the effect of flushing fixtures as a control measure. Method: 91 drinking water samples were collected from various fixtures at 16 child care facilities at progressive time points to observe the effects of flushing and re-stagnation on total dissolved lead content. Analysis was performed using Varian AAS-240 coupled with GTA-120 graphite furnace atomic absorption spectroscopy. Results were analysed statistically using Excel 2010 and SAS/STAT® 14.2 software with SAS Studio 3.6 interface. Results: The mean (SD, min-max) lead concentrations of the water samples were 0.69 (2.32, 0.1-11.27) μg/L at zero minutes of flushing, 0.21 (0.44, 0.1-2.19) μg/L after one minute of flushing, 0.15 (0.17, 0.1- 0.87) μg/L after five minutes of flushing, 0.18 (0.17, 0.1 -0.64) μg/L after re-stagnation, and 0.31 (1.20, 0.1-11.27) μg/L overall. One outlier sample had a lead concentration of 11.27 μg/L, which exceeded Health Canada’s maximum allowable concentration of 10 μg/L. The decrease in mean lead concentration between zero minutes and one minute of flushing was statistically significant (p=0.0020). Conclusions: The results indicate that lead contamination of drinking water in child care facilities is present but below regulatory action levels under normal circumstances. The flushing of fixtures for at least one minute was shown to be effective in lowering lead concentrations further. Efforts should be taken to identify facilities at higher risk of lead contamination and to educate operators of flushing as an effective control measure.  

2021 ◽  
pp. 112140
Author(s):  
Elizabeth Stanbrough ◽  
Lindsay McCormick ◽  
Jason Barrett ◽  
Mark O. Barnett

2001 ◽  
Vol 1 (2) ◽  
pp. 73-78 ◽  
Author(s):  
R. Amofah Dayie ◽  
S.S. Aronson ◽  
L. Jansen-McWilliams ◽  
K.J. Kelleher

Women in the workforce is once considered to be a hindrance because of the maternity period and the post partum child care that needed to be given by the mother. However, the recent trends of diversity management and the performance of women in certain jobs have made the contribution of women unavoidable in the workforce. This was aimed to know the opinion of the business people regarding employer sponsored child care facilities. The type of research undertaken is the descriptive study as the study tries to identify the opinion of the management and tries to identify a solution to the problems. The results indicates that Managing Directors felt that women employees’ contribution is very essential for the success and growth of the organization.


The essential requirement for human life to exist is water. After to the air, the other It has in various sources such as canals, ponds, rivers, lake, streams, reservoirs and etc. human settlers on the banks of major river systems at the earliest and has need water for drinking, bathing, cooking, laundering, and many more. But with the advancement of civilization the demand of water supply grately increased and now has such a stage to come that without well organized public water supply scheme, it is not possible to move the present human life and the develop the towns. Earlier has importance on quantity. And now today importance of quality comes to be recognized gradually in the later days. In this present study, numbers of water samples were collected various water supply schemes from 20 villages of bhimavaram region, West Godavari district, Andhra Pradesh. The drinking water samples are analyze its biological quality and it was found that some of the samples in the study area are exceeds or above the standard limit or permissible limit. On over all based on biological quality few drinking water sources located in and around different areas of Bhimavaram was seriously polluted by harmful bacteria and must need few treatment methods. So that need of attention not to use of supplied water and need to give suggestions and remedial measures to concerned local authorities of various disinfection treatment technologies or control measure to make supplied water free from pathogenic Bactria. Quality Assessment of drinking water from various sources (S Malhotra, S.K., Sndhu (2015), especially bacteriological quality should be periodically planned regularly to avoid and control waterborne diseases


Author(s):  
Soon-Jeoung Moon ◽  
Chang-Suk Kang ◽  
Hyun-Hee Jung ◽  
Myoung-Hee Lee ◽  
Sin-Won Lim ◽  
...  

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