Developing an Integrated “Regression-QMRA method” to Predict Public Health Risks of Low Impact Developments (LIDs) for Improved Planning

Ishaq, Sadia; Sadiq, Rehan; Chhipi‐Shrestha, Gyan; Farooq, Shaukat; Hewage, Kasun

doi:10.1007/s00267-022-01657-0

Cited by 2 publications

(1 citation statement)

References 86 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Our study provides quantitative evidence that may help manage the health impacts. With the support of the hydrodynamic model, applying the appropriate mitigation measures can reduce microbial health risk, for example, low‐impact development or natural‐based solutions (Ishaq et al, 2022; Oral et al, 2020). While improving floodwater quality and reducing inundation play an essential role in reducing the risk, actions could also reduce the exposure.…”

Section: Discussionmentioning

confidence: 99%

Estimating disease burden of rotavirus in floodwater through traffic in the urban areas: A case study of Can Tho city, Vietnam

Huynh,

Hofstra,

Nguyen

et al. 2023

J Flood Risk Management

View full text Add to dashboard Cite

Microbial pathogens in urban floodwaters pose risks to human health, potentially causing diseases such as diarrhea. However, the disease burden related to urban traffic exposure from citizens passing through floodwaters is not easily quantified and therefore not included in many studies. Notably, this problem has received little attention in low‐to‐middle‐income countries, with frequent flood events and the heavy diarrheal disease burden. This article calculates the infection risks and disease burden, considering traffic associated with exposure to floodwater contaminated with rotavirus for the first time in Ninh Kieu District, Can Tho city. Can Tho city in the Vietnamese Mekong Delta is well known to have many flood events every year, with many diarrheal cases during the flood season. The methodology comprises two steps. First, we applied quantitative microbial risk assessment that proposes the inclusion of exposure to traffic due to rotavirus in floodwater. Second, the disease burden was expressed in disability‐adjusted life years (DALYs). The exposed groups are child pedestrians, adult pedestrians, motorcyclists, and cyclists. We used video footage to monitor the traffic. The results show that total DALYs per flood event were 1.35 × 104 for 63,390 exposed people (i.e., 2129 DALYs per 10,000 cases). Motorcyclists are the strongest contributors to the DALYs (95%), followed by cyclists (2.8%), adult pedestrians (2%), and child pedestrians (0.2%). The population in Ninh Kieu District may suffer from waterborne diseases through traffic activities during flooding times. Our approach can be applied in other areas worldwide and helps identify main risk groups and focus areas for interventions.

show abstract

Section: Discussionmentioning

confidence: 99%

Estimating disease burden of rotavirus in floodwater through traffic in the urban areas: A case study of Can Tho city, Vietnam

Huynh,

Hofstra,

Nguyen

et al. 2023

J Flood Risk Management

View full text Add to dashboard Cite

show abstract

Pathogens in Runoff Water Treated by a Sustainable Urban Drainage System in a Developing Country

et al. 2022

View full text Add to dashboard Cite

Sustainable Urban Drainage Systems (SUDS) are commonly used to control flooding in urban areas. These structures store and treat stormwater runoff. Several studies in high-income countries have reported the presence of pathogens in runoff water, but it is expected that runoff water in developing countries contains higher pathogen concentrations given their lack of resources to properly manage sewage; this could result in higher risks of infection for people interacting with SUDS. In this study, we investigated pathogen concentrations (i.e., Salmonella spp. and E. Coli O157) at the micropool of a SUDS train composed of a grassed swale followed by a dry extended detention basin in Bogotá (Colombia) during a 25-week period. We also estimated the risk of infection with the analyzed pathogens, given the high level of exposure to the detention structure. Additionally, we investigated if any of the physicochemical or meteorological variables were associated with pathogen concentrations at the site. We found that pathogen concentrations greatly exceeded concentrations reported for stormwater runoff in developed countries, namely 1562 CFU/mL, on average, for Salmonella spp. and 9160 CFU/mL, on average, for E. Coli O157. The risk of infection from Salmonella spp. and E. Coli O157 greatly exceeded risks previously reported for recreational waters and SUDS. Pathogen concentrations were associated with precipitation and the concentration of suspended solids in the runoff. Given our findings, it is recommended that SUDS in developing countries should consider potential higher pathogen concentrations in stormwater runoff to reduce exposure.

show abstract

Developing an Integrated “Regression-QMRA method” to Predict Public Health Risks of Low Impact Developments (LIDs) for Improved Planning

Cited by 2 publications

References 86 publications

Estimating disease burden of rotavirus in floodwater through traffic in the urban areas: A case study of Can Tho city, Vietnam

Estimating disease burden of rotavirus in floodwater through traffic in the urban areas: A case study of Can Tho city, Vietnam

Pathogens in Runoff Water Treated by a Sustainable Urban Drainage System in a Developing Country

Contact Info

Product

Resources

About