Impacts of de-icing salt pollution on urban road greenspace: a case study of Beijing

Li, Zhouyuan; Liang, Ying‐Mei; Jun-hui, Zhou; Sun, Xiaohong

doi:10.1007/s11783-014-0644-2

Cited by 24 publications

(13 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The two other modes are in 0.108–0.17 μm and 0.65–1 μm. While the presence of the mode for Na + in 2.5–4.4 μm is accounted for by the road dust or soil contamination with NaCl (Pant and Harrison 2013 ; Li et al 2014 ), the mode for EC within such great diameters is not typical; it should rather be expected within very small diameters (ultrafine particles), as the traffic emissions are dominant in summer (Maricq 2007 ; Alves et al 2015 ).…”

Section: Resultsmentioning

confidence: 99%

Size-segregated urban particulate matter: mass closure, chemical composition, and primary and secondary matter content

Rogula–Kozłowska

2015

Air Qual Atmos Health

View full text Add to dashboard Cite

Forty-nine components of ambient particulate matter (PM) in size-fractionated PM were investigated at an urban background site in Katowice (Silesian Agglomeration in Southern Poland) in the non-heating season of 2012. PM was analyzed for two groups of carbon compounds (organic (OC) and elemental (EC) carbon, Lab OC-EC Aerosol Analyzer), five major water-soluble ions (NH4+, Cl−, SO42−, NO3−, and Na+ contents in PM water extracts, ion chromatography), 26 elements (X-ray fluorescence spectrometry), and 16 polycyclic aromatic hydrocarbons (PAHs, gas chromatography). The distributions of the masses of these components among 13 basic PM fractions were determined, and chemical mass closure was checked for each of these fractions separately. The particles having their aerodynamic diameters in the interval 0.03–0.26 μm, the fraction PM0.03–0.26, contributed about 13 % to the total PM mass. This PM fraction consisted of primary particles predominantly composed of various inorganic compounds, primary organic compounds, and, in lesser amounts, of elemental carbon, secondary ions, and secondary organic compounds. The second particle fraction, PM0.26–1.6, consisted mainly of secondary matter, and its mass contribution to the total PM mass was about 59 %. The third fraction, PM1.6–40, was a fraction of coarse particles composed of mineral/soil and organic matter and elemental carbon. It contributed to the PM mass about 28 %. For each of PM0.03–0.26, PM0.26–1.6, and PM1.6–40, the health hazard from its 16 PAH contents was determined by computing toxicity factors. PM0.26–1.6 posed the greatest health hazard from the mixture of the 16 PAHs that it contained, PM1.6–40 was the next, and the hazard from the PM0.03–0.26-bound 16 PAHs was the smallest. The molecular diagnostic ratios computed for these three fractions were specific for coal and wood combustion; some indicated the road traffic effects.

show abstract

Section: Resultsmentioning

confidence: 99%

Size-segregated urban particulate matter: mass closure, chemical composition, and primary and secondary matter content

Rogula–Kozłowska

2015

Air Qual Atmos Health

View full text Add to dashboard Cite

show abstract

“…Green areas in cities are exposed to elevated temperatures and high anthropogenic pollution of air, soil, and water . Furthermore, urban soils are often compacted, which is unfavorable for water availability, and are exposed to deicing substances harmful for vegetation growing along streets. Urban and suburban vegetation responds to changes in abiotic conditions with modifications in its physiology and anatomy .…”

Section: Introductionmentioning

confidence: 99%

Effect of VOC Emissions from Vegetation on Air Quality in Berlin during a Heatwave

Churkinа

Kuik

Bonn

et al. 2017

Environ. Sci. Technol.

172

104

View full text Add to dashboard Cite

The potential of emissions from urban vegetation combined with anthropogenic emissions to produce ozone and particulate matter has long been recognized. This potential increases with rising temperatures and may lead to severe problems with air quality in densely populated areas during heat waves. Here, we investigate how heat waves affect emissions of volatile organic compounds from urban/suburban vegetation and corresponding ground-level ozone and particulate matter. We use the Weather Research and Forecasting Model with atmospheric chemistry (WRF-Chem) with emissions of volatile organic compounds (VOCs) from vegetation simulated with MEGAN to quantify some of these feedbacks in Berlin, Germany, during the heat wave in 2006. The highest ozone concentration observed during that period was ∼200 μg/m (∼101 ppb). The model simulations indicate that the contribution of biogenic VOC emissions to ozone formation is lower in June (9-11%) and August (6-9%) than in July (17-20%). On particular days within the analyzed heat wave period, this contribution increases up to 60%. The actual contribution is expected to be even higher as the model underestimates isoprene concentrations over urban forests and parks by 0.6-1.4 ppb. Our study demonstrates that biogenic VOCs can considerably enhance air pollution during heat waves. We emphasize the dual role of vegetation for air quality and human health in cities during warm seasons, which is removal and lessening versus enhancement of air pollution. The results of our study suggest that reduction of anthropogenic sources of NOx, VOCs, and PM, for example, reduction of the motorized vehicle fleet, would have to accompany urban tree planting campaigns to make them really beneficial for urban dwellers.

show abstract

“…In cities, especially on streets and in other paved environments, trees are exposed to a number of stressful elements, e.g., heat, low air humidity, periods of drought, high lime content and soil pH, limited soil volume, and de-icing salt ( Paludan-Müller et al, 2002 ; Pauleit, 2003 ; Vogt et al, 2017 ). In many cities in the Northern Hemisphere, soil salinity caused by de-icing streets and sidewalks is an important threat to trees, as in the case in North America ( Bassuk & Whitlow, 1985 ; Munck et al, 2010 ; Ordóez-Barona et al., 2018 ), northeastern Asia ( Kayama et al, 2003 ; Li et al, 2014 ), and Europe ( Gibbs & Palmer, 1994 ; Viskari & Kärenlampi, 2000 ; Cekstere & Osvalde, 2013 ). In Poland specifically, de-icing has been recognized as the main cause of death of urban trees ( Dmuchowski, Baczewska & Bra̧goszewska, 2011a ; Dmuchowski, Brogowski & Baczewska, 2011b ).…”

Section: Introductionmentioning

confidence: 99%

Effect of salt stress in urban conditions on twoAcerspecies with different sensitivity

Dmuchowski

Baczewska-Dąbrowska

Gozdowski

et al. 2021

PeerJ

View full text Add to dashboard Cite

Background The benefits of trees in urban areas include the following: an increase in ecosystem health, an increase in human health, the mitigation of the effects of heat and drought at microclimate level, the storage and sequestration of carbon, and a reduction in air pollution and noise. These ecosystem services can be provided only by trees that are in good health. The main cause of salt stress in urban environments is the use of de-icing salts on the streets in winter. Salt stress is a complex process that includes changes in plants on the physiological, histological, cellular and molecular levels, leading to limitations in nutrient uptake, disrupting the ionic balance of trees and resulting in the death of roadside trees. In response to salinity, trees have developed a variety of defence mechanisms that allow them to minimize the effects of stress and maintain homeostasis. Methodology The reactions of two species Acer species: A. platanoides and A. campestre, which have different sensitivities to the unfavourable conditions of the urban environments (mainly salt stress), were investigated. The research included two experiments: a field experiment with city trees and a controlled pot experiment with young trees treated with increasing doses of salt. In both experiments, the following were performed: an assessment of the health condition of the trees and the content of macroelements as well as the Cl and Na in leaves and a qualitative and quantitative analysis of polyprenols. Results A. campestre had a more specific strategy than A. platanoides for dealing with Na and Cl, which resulted in undamaged leaves. Under the same conditions, A. platanoides leaves contained more Cl and Na and were severely damaged. The disruption of the ion balance due to salt stress was lower in A. campestre than in A. platanoides. Compared with A. platanoides, A. campestre synthesized more polyprenols in the field experiment. This ability was acquired during the process of acclimation, because it occurred only in the mature trees in the field experiment and not in the young trees in the pot experiment. Conclusions The use of two experimental methods (i.e., the field and pot experiments) allowed for a more complete assessment of tree strategies to mitigate salt stress. A. campestre displayed a more specific strategy than A. platanoides. This strategy was based on several elements. A. campestre limited Cl and Na transport to the leaves, which resulted in a lack of damage to those organs. Under the same conditions, A. platanoides individuals contained more Cl and Na in their leaves and were seriously damaged. A. campestre synthesized larger amounts of polyprenols, which probably have the ability to mitigate salt stress. This ability was acquired during the process of acclimation, because it occurred only in the mature trees in the field experiment and was not observed in the young trees in the pot experiment.

show abstract

Impacts of de-icing salt pollution on urban road greenspace: a case study of Beijing

Cited by 24 publications

References 14 publications

Size-segregated urban particulate matter: mass closure, chemical composition, and primary and secondary matter content

Size-segregated urban particulate matter: mass closure, chemical composition, and primary and secondary matter content

Effect of VOC Emissions from Vegetation on Air Quality in Berlin during a Heatwave

Effect of salt stress in urban conditions on twoAcerspecies with different sensitivity

Contact Info

Product

Resources

About