on Human Health Risk Assessment due to Drinking of High concentrated Arsenic groundwater By Tamru Tesseme 2014CEZ8238 Sudheer Kumar 2014CEZ8045 Department of Civil engineering IIT Delhi ID: 569412
Download Presentation The PPT/PDF document "Environmental Risk Assessment term paper" is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.
Slide1
Environmental Risk Assessment term paperon Human Health Risk Assessment due to Drinking of High concentrated Arsenic groundwater
By: Tamru Tesseme (2014CEZ8238) Sudheer Kumar (2014CEZ8045)Department of Civil engineering IIT Delhi2014 Slide2
Arsenic certainly prevailing as one of the top twentieth abundant element in earth’s crust. As
per WHO drinking water quality guidelines standards the maximum concentration level of Arsenic in drinking water is 10µg/l. The presence of different forms of Arsenic in drinking water above the desired limit may be the cause of human health risks such as skin lesions, cardiovascular and haematological effects, and internal cancers.Introduction Slide3
The general objective of this term paper is a human health risk assessment due to an over concentration of Arsenic in drinking groundwater.The methodology used in this term paper for assessment of human health risk, based on Gerba
risk assessment hand-out and using similar USEPA and WHO guideline issues. Cont’d….Slide4
Risk Assessment
Adult and Child resident
Volatilization during Domestic use
Air
Inhalation
Adult and Child resident
Arsenic in Ground Water
Infiltration and percolation Source
From WWTP and Domestic waste
Consumer product
Inhalation
Dermal
Ingestion
Drinking water
Ingestion
Dermal
Adult and Child resident
Source
Pathway
Exposure Route
Receptor Slide5
Results
P
2
Arsenic
Arsenic in geological formation through infiltration and percolation
Arsenic from secondary source: (domestic, industry, WWTP etc.).
Yes, Failure
No, Success
Arsenic over concentration
No, Success
Yes, Failure
Yes, Failure
No, Success
Outcomes
Consequence
Non-carcinogenic effects
Carcinogenic effects
Non-carcinogenic effects
Carcinogenic effects
1
3
4
2
P
1
1-P
1
1-P
2
P
3
1-P
3
Parameter
Pathway
Heavy metal contaminants
As
Cr
Ni
Pb
ADD
Ingestion
0.02323
0.002977143
0.002074286
0.007548571
Hazard Quotients
Ingestion
1.0955
0.1488
0.1037
0.3281
Hazard index (HI) = 1.67
Cancer risk ( Carcinogenic)
Ingestion
0.0024
Slide6
Risk Management and Remediation 1)
Management and remediation of Arsenic from ground primary sources2) Management and remediation arsenic from secondary sourcesConclusion and RecommendationArsenic in our study area above the limit and its values put in group1 carcinogenic human health chemicals. Based the data obtained from Arsenic uncertainty analysis result; implementation soil, water and air risk management/remediation
systems
required to reduce
concentration of Arsenic and its adverse health effects to human
.