Air quality in underground metro station commuter platforms in Singapore: A cross-sectional analysis of factors influencing commuter exposure levels

Tan, Sze Tat; Mohamed, Nazeem; Ng, Lee Ching; Aik, Joel

doi:10.1016/j.atmosenv.2022.118962

Cited by 8 publications

(8 citation statements)

References 24 publications

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“…As shown in previous studies, concentrations on the platforms are much higher than outdoor values, indicating that the generation of PM 2.5 is associated with the metro operation [6][7][8][9][10]. The levels of measured particles are associated with the ventilation system [11], the frequency of routes, the train movement [12], the construction features of the trains [13], the maintenance of the lines, and the depth of the platform [14]. The chemical composition of PM is highly related to the transport mode.…”

Section: Introductionmentioning

confidence: 55%

Exposure to PM2.5 on Public Transport: Guidance for Field Measurements with Low-Cost Sensors

Fameli,

Moustris,

Spyropoulos

et al. 2024

Atmosphere

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Air pollution is one of the most important problems in big cities, resulting in adverse health effects. The aim of the present study was to characterize the personal exposure to indoor and outdoor pollution in the Greater Athens Area in Greece by taking measurements during a journey from suburban to mixed industrial–urban areas, encompassing walking, waiting, bus travel, and metro travel at various depths. For this reason, low-cost (LC) sensors were used, and the inhaled dose of particulate matter with an aerodynamic diameter of less than or equal to 2.5 μm (PM2.5) in different age groups of passengers was calculated. Specific bus routes and the Athens metro network were monitored throughout different hours of the day. Then, the average particulate matter (PM2.5) exposure for a metro passenger was calculated and evaluated. By considering the ventilation rate of a passenger, an estimation of the total PM2.5 inhaled dose for males and females as well as for different age groups was made. The results showed that the highest PM2.5 concentrations were observed inside the wagons with significant increases during rush hours or after rush hours. Furthermore, there should be a concern regarding older individuals using the subway network in Athens during rush hours and in general for sensitive groups (people with asthma, respiratory and cardiovascular problems, etc.).

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Section: Introductionmentioning

confidence: 55%

Exposure to PM2.5 on Public Transport: Guidance for Field Measurements with Low-Cost Sensors

Fameli,

Moustris,

Spyropoulos

et al. 2024

Atmosphere

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“…Furthermore, the installation of platform screen doors, ventilation measures, and filtration devices can effectively mitigate pollutant accumulation. The installation of platform screen doors has been shown to reduce 16-30% PM10 concentration (18,68). Integrating magnetic filters into ventilation systems can effectively eliminate up to 50% of PM10 (69).…”

Section: Pollutant Control Measuresmentioning

confidence: 99%

“…However, most studies have only analyzed the exposure dose of pollutants ( 17 , 18 ), and the resulting health damage has not been thoroughly quantified. On the one hand, previous studies primarily focus on the health impacts faced by metro commuters ( 19 ). It is worth noting that metro staff, including security inspectors, ticket sellers, and platform attendants, work in a confined metro environment for extended periods each day (~12 h).…”

Section: Introductionmentioning

confidence: 99%

“…Many scholars have conducted horizontal comparative analyses of the health issues in metro systems. However, most studies have only analyzed the exposure dose of pollutants (17,18), and the resulting health damage has not been thoroughly quantified. On the one hand, previous studies primarily focus on the health impacts faced by metro commuters (19).…”

Section: Introductionmentioning

confidence: 99%

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Health damage assessment of commuters and staff in the metro system based on field monitoring—A case study of Nanjing

Su,

Li,

Ding

et al. 2024

Front. Public Health

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IntroductionThe metro has emerged as a major mode of transportation. A significant number of commuters and staff in the metro system are exposed to air pollutants because of its shielded environment, and substantial health damage requires quantitative assessment. Previous studies have focused on comparing the health impacts among different transportation modes, overlooking the specific population characteristics and pollutant distribution in metro systems.MethodsTo make improvements, this study implements field monitoring of the metro's air environment utilizing specialized instruments and develops a health damage assessment model. The model quantifies health damage of two main groups (commuters and staff) in metro systems at three different areas (station halls, platforms, and metro cabins) due to particulate matter 10 and benzene series pollution.ConclusionA case study of Nanjing Metro Line 3 was conducted to demonstrate the applicability of the model. Health damage at different metro stations was analyzed, and the health damage of commuters and staff was assessed and compared. This study contributes to enhancing research on health damage in the metro systems by providing a reference for mitigation measures and guiding health subsidy policies.

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“…Fuels combustion in the transportation/industrial sectors generates Nitrogen dioxide (NO2) and Sulfure dioxides (SO2). [7][8][9][10] Despite the need of underground stations, it still has its share of challenges represented primarily in its environment characteristics due to it being an enclosed one below the surface of earth which is prone to cause decreased oxygen concentrations and increased carbon dioxide concentrations [11,12], elevated humidity and temperature [13], increased toxic particle concentrations [14], and accumulation of radioactive radon [15].This , in addition to lack of natural sunlight ,all those factors can surly negatively impact users health, especially if they do use it on a daily basis which probably many of the citizens already do.…”

Section: Underground Metro Stations Potential Globally and In Egyptmentioning

confidence: 99%

Improving Citizens’ Health in Underground Public Interior Spaces Through AI Powered Green Walls

Shaheen

Nabih

Abdelmouez

2023

MSA Engineering Journal

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In almost 600 BC, the Green Walls concept was presented. Most of the previous research has proved that the use of green walls in different types of interior spaces has its considerable merits in improving users' overall health and productivity. Interior Designers seem reluctant to integrate green walls in underground spaces due to its drawbacks as one of the most expensive man-made walls, needing scheduled water requirements, and its susceptibility to adversities such as fungi growth.

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Air quality in underground metro station commuter platforms in Singapore: A cross-sectional analysis of factors influencing commuter exposure levels

Cited by 8 publications

References 24 publications

Exposure to PM2.5 on Public Transport: Guidance for Field Measurements with Low-Cost Sensors

Exposure to PM2.5 on Public Transport: Guidance for Field Measurements with Low-Cost Sensors

Health damage assessment of commuters and staff in the metro system based on field monitoring—A case study of Nanjing

Improving Citizens’ Health in Underground Public Interior Spaces Through AI Powered Green Walls

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