Comprehensive assessment of toxic metals in urban and suburban street deposited sediments (SDSs) in the biggest metropolitan area of China

Shi, Guitao; Chen, Zhongting; Bi, Chen; Li, Y; Teng, J.; Wang, L; Xu, Shiyuan

doi:10.1016/j.envpol.2009.10.020

Cited by 143 publications

(53 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The sources of Zn, As, and Pb are generally anthropogenic. These trace elements tend to have negative effect on human health (Magari et al, 2002;Shi et al, 2010), therefore more measurements would be taken to reduce the anthropogenic sources.…”

Section: Inorganic Elementsmentioning

confidence: 99%

Chemical Characteristics of PM2.5 during a 2016 Winter Haze Episode in Shijiazhuang, China

Chen

Zhang

Zhu

et al. 2017

Aerosol Air Qual. Res.

View full text Add to dashboard Cite

To better understand the chemical characteristics and the potential source regions of PM 2.5 measured from 18 January until 22 January 2016 in Shijiazhuang, China, PM 2.5 was measured continuously and integrated daily sampling using midvolume samplers was conducted at the three sites. The mean concentration of PM 2.5 at the three sites reached 113, 131 and 119 µg m -3 during the sampling period, the higher concentrations occurred at early morning and noon, similar variation trends were found in the three sites. The concentrations of OC were higher than EC at three sampling sites and the OC/EC ratios ranged from 9.09 to 12.4 with a daily mean value of 10.8 during a haze pollution episode (HPE), which suggested that carbonaceous compositions might be from same source. The total concentration of water soluble inorganic ions (WSII) at the sites ranged from 72.2 to 100.0 µg m -3 with a mean of 84.3 µg m -3. The dominant species were NO 3 -, SO 4 2-, NH 4 + , Cl -, accounting for 88.4% of the mean PM 2.5 WSII mass. The most abundant measured element was Na with average mass concentrations of 41.5, 37.0, and 38.1 µg m -3 during the HPE. Relative humidity during HPE was higher than during clean days with average values of 70.1% and 60.2%, suggesting that high relative humidity and low wind speed favored formation of secondary inorganic ions and accelerated hygroscopic growth. The Hybrid Single Particle Lagrangian Integrated Trajectory (HYSPLIT) and a potential source contribution function (PSCF) analysis were used to assess the data. Back-trajectories for the three sites identified similar transport pathways. PSCF analysis showed a significant regional impact on PM 2.5 at Shijiazhuang during the polluted period. The potential source areas for PM 2.5 in Shijiazhuang were the Beijing-Tianjin region and Shandong Province. The results of the present study show the need for the development of PM 2.5 control measurements on a regional scale.

show abstract

Section: Inorganic Elementsmentioning

confidence: 99%

Chemical Characteristics of PM2.5 during a 2016 Winter Haze Episode in Shijiazhuang, China

Chen

Zhang

Zhu

et al. 2017

Aerosol Air Qual. Res.

View full text Add to dashboard Cite

show abstract

“…The earliest studies conducted to investigate metal contamination associated with RDS focused on comparison among land uses in one city or among different cities (Lau and Stenstrom, 2005;Lu et al, 2009). In recent years, a variety of methods have been introduced to investigate the metal risk associated with RDS posed to water, soil or river sediments, with traditional methods including the (1) geoaccumulation index (I geo ), (2) enrichment factor (EF), (3) Nemerow synthetic pollution index (PI N ) and (4) potential ecological risk index (RI) (Buccolieri et al, 2006;Cheng et al, 2007;Liu et al, 2008;Shi et al, 2010;Wei and Yang, 2010). The applicability of these traditional assessment methods to the risks associated with metals in RDS is still unclear.…”

Section: Introductionmentioning

confidence: 99%

Risk assessment of metals in road-deposited sediment along an urban–rural gradient

Zhao

2013

Environmental Pollution

108

View full text Add to dashboard Cite

a b s t r a c tWe applied the traditional risk assessment methods originally designed for soils and river sediments to evaluation of risk associated with metals in road-deposited sediment (RDS) along an urbanerural gradient that included central urban (UCA), urban village (UVA), central suburban county (CSA), rural town (RTA), and rural village (RVA) areas in the Beijing metropolitan region. A new indicator RI RDS was developed which integrated the RDS characteristics of mobility, grain size and amount with the potential ecological risk index. The risk associated with metals in RDS in urban areas was generally higher than that in rural areas based on the assessment using traditional methods, but the risk was higher in urban and rural village areas than the areas with higher administration units based on the indicator RI RDS . These findings implied that RDS characteristics variation with the urbanerural gradient must be considered in metal risk assessment and RDS washoff pollution control.

show abstract

“…In developing countries, such as China, studies on urban garbage mainly focus on disposal methods [10]. There is little research on sanitation workers' health status, occupational safety or protection [11,12].…”

Section: Introductionmentioning

confidence: 99%

Occupational Safety and Health Status of Sanitation Workers in Urban Areas: A Pilot Study From Wuhan, China

Gong¹,

Yu²,

Zhang³

et al. 2013

International Journal of Occupational Safety and Ergonomics

View full text Add to dashboard Cite

show abstract

Comprehensive assessment of toxic metals in urban and suburban street deposited sediments (SDSs) in the biggest metropolitan area of China

Cited by 143 publications

References 57 publications

Chemical Characteristics of PM2.5 during a 2016 Winter Haze Episode in Shijiazhuang, China

Chemical Characteristics of PM2.5 during a 2016 Winter Haze Episode in Shijiazhuang, China

Risk assessment of metals in road-deposited sediment along an urban–rural gradient

Occupational Safety and Health Status of Sanitation Workers in Urban Areas: A Pilot Study From Wuhan, China

Contact Info

Product

Resources

About