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| 1 | Understanding nutrient build-up on urban road surfaces显示文摘This article discusses the outcomes of a research project on nutrients build-up on urban road surfaces.Nutrient build-up was investigated on road sites belonging to residential,industrial and commercial land use.Collected build-up samples were separated into five particle size ranges and were tested for total nitrogen (TN),total phosphorus (TP) and sub species of nutrients,namely,NO 2- ,NO 3- ,TKN and PO 43-.Multivariate analytical techniques were used to analyse the data and to develop detailed understanding on build- up.Data analysis revealed that the solids loads on urban road surfaces are highly influenced by factors such as land use,antecedent dry period and traffic volume.However,the nutrient build-up process was found to be independent of the type of land use.It was solely dependent on the particle size of solids build-up.Most of the nutrients were associated with the particle size range <150 μm.Therefore,the removal of particles below 150 μm from road surfaces is of importance for the removal of nitrogen and phosphorus from road surface solids build-up.It is also important to consider the difference in the composition of nitrogen and phosphorus build-up in the context of designing effective stormwater quality mitigation strategies. | Nandika Prasadani Miguntanna Ashantha Goonetilleke Prasanna Egodowatta Serge Kokot | 2010 | Journal of Environmental Sciences2010，22，6： | 5 |
| 2 | Role of adsorption behavior on metal build-up in urban road dust显示文摘Metal pollution of stormwater runoff can cause potential toxic impacts on the receiving water environment and human health. Effective pollution mitigation requires accurate stormwater quality modeling. Even though a significant knowledge base exists on the factors influencing metal build-up on urban roads, very limited studies have investigated how metal–particulate interaction influences metal build-up. This study quantitatively assessed the influence of particulate characteristics, together with vehicular traffic and land use, on the build-up of Zn, Cu, Pb, Cr, Ni and Cd on urban roads. The study outcomes revealed that the variability in metal build-up is highly influenced by the variability associated with metal adsorption to particulates. The percentage contribution from particulate properties influencing metal adsorption in the case of < 150 μm size road dust particles was found to be higher(Zn 44%, Cu 52%, Cr 16%, Ni 27% and Cd 45%) when compared to traffic and land use characteristics(Zn 21%, Cu 13%, Cr and Ni <10% and Cd 34%). Similar adsorption behavior was noted for metals associated with > 150 μm size road dust particles. Among different particulate properties influencing metal adsorption, effective cation exchange capacity showed a strong positive relationship with the build-up of Cd compared to other metals,highlighting the potential role of Cd in stormwater quality as a readily available metal. The build-up of metals such as Cr and Ni are highly influenced by metal oxides of Al, Fe and Mn and clay forming minerals, indicating that Cr and Ni are relatively stable in nature. | Ayomi Jayarathne Buddhi Wijesiri Prasanna Egodawatta Godwin A. Ayoko Ashantha Goonetilleke | 2019 | Journal of Environmental Sciences2019，31，9： | 3 |
| 3 | Analysis of heavy metals in road-deposited sediments 显示文摘 | Lars H Ashantha G Godwin A A | 2006 | Analytica Chimica Acta2006，571，： | 1 |
| 4 | Mathematical interpretation of pollution wash--off from urban road surfaces using simulated rainfall 显示文摘 | Prasanna Egodawatta Evan Thomas Ashantha Goonetilleke | 2007 | Water Research2007，，41： | 1 |
| 5 | Enrichment, distribution and sources of heavy metals in the sediments of Deception Bay, Queensland, Australia显示文摘 | James P. Brady Godwin A. Ayoko Wayde N. Martens Ashantha Goonetilleke | 2014 | Marine Pollution Bulletin2014，，： | 1 |
| 6 | Taxonomy for rainfall events based on pollutant wash-off potential in urban areas显示文摘 | An Liu Ashantha Goonetilleke Prasanna Egodawatta | 2012 | Ecological Engineering2012，，： | 1 |
| 7 | Mathematical interpretation of pollutant wash-off from urban road surfaces using simulated rainfall显示文摘 | Prasanna Egodawatta Evan Thomas Ashantha Goonetilleke | 2007 | Water Research2007，，13： | 1 |
| 8 | Analysis of heavy metals in road-deposited sediments显示文摘 | Lars Herngren Ashantha Goonetilleke Godwin A. Ayoko | 2006 | Analytica Chimica Acta2006，，2： | 1 |
| 9 | Understanding therole of land use in urban stormwater quality management显示文摘 | Ashantha G Evan T Simon G | 2005 | J Environ Manage2005，74，1： | 1 |
| 10 | Understanding Heavy Metal and Suspended Solids Relationships in Urban Stormwater Us- ing Imulated Rainfall 显示文摘 | Lars Herngren Ashantha Goonetilleke Godwin A Ayoko | 2005 | Journal of Environmental Management2005，76，2： | 1 |
| 11 | Impact of policy distortion on finn - level innovation, productivity dynamics and TFP显示文摘 | Ashantha R | 2014 | Journal of Economic Dynamics and Control2014，46，9： | 1 |
| 12 | Assessment via discriminant analysis of soil suitability for effluent renovation using undisturbed soil columns显示文摘 | Carroll Steven Goonetilleke Ashantha | 2006 | Geoderma2006，131，12： | 1 |
| 13 | Using multi- variate analysis to predict the behaviour of soils under ef- fluent irrigation 显示文摘 | DAWES Les GOONETILLEKE Ashantha | 2006 | Water Air and Soil Pollution-WA- TER AIR SOIL POLLUT2006，172，14： | 1 |
| 14 | Understanding the role of land use in urban stormwater quality management显示文摘 | Ashantha Goonetillekea Evan Thomasb Simon Ginnc | 2005 | Journal of Environmental Management2005，74，： | 1 |
| 15 | A Critical Review of Social Resilience Properties and Pathways in Disaster Management显示文摘Resilience as a concept is multi-faceted with complex dimensions.In a disaster context,there is lack of consistency in conceptualizing social resilience.This results in ambiguity of its definition,properties,and pathways for assessment.A number of key research gaps exist for critically reviewing social resilience conceptualization,projecting resilience properties in a disaster-development continuum,and delineating a resilience trajectory in a multiple disaster timeline.This review addressed these research gaps by critically reviewing social resilience definitions,properties,and pathways.The review found four variations in social resilience definitions,which recognize the importance of abilities of social systems and processes in disaster phases at different levels.A review of resilience properties and pathways in the disaster resilience literature suggested new resilience properties—“risk-sensitivity”and“regenerative”in the timeline of two consecutive disasters.This review highlights a causal pathway for social resilience to better understand the resilience status in a multi-shock scenario by depicting inherent and adaptive resilience for consecutive disaster scenarios and a historical case study for a resilience trajectory in a multiple disaster timeline.The review findings will assist disaster management policymakers and practitioners to formulate appropriate resilience enhancement strategies within a holistic framework in a multi-disaster timeline. | A.M.Aslam Saja Melissa Teo Ashantha Goonetilleke Abdul MZivath | 2021 | International Journal of Disaster Risk Science2021，12，6： | 0 |
| 16 | Particulate matter exchange between atmosphere and roads surfaces in urban areas显示文摘The deposition and the re-suspension of particulate matter(PM) in urban areas are the key processes that contribute not only to stormwater pollution, but also to air pollution. However, investigation of the deposition and the re-suspension of PM is challenging because of the difficulties in distinguishing between the resuspended and the deposited PM. This study created two Bayesian Networks(BN) models to explore the deposition and the re-suspension of PM as well as the important influential factors. The outcomes of BN modelling revealed that deposition and re-suspension of PM10 occurred under both, high-traffic and low-traffic conditions, and the re-suspension of PM2.5 occurred under low-traffic conditions. The deposition of PM10 under low-volume traffic condition is 1.6 times higher than under highvolume traffic condition, which is attributed to the decrease in PM10 caused by relatively higher turbulence under high-volume traffic conditions. PM10 is more easily resuspended from road surfaces compared to PM2.5 as the particles which larger than the thickness of the laminar airflow over the road surface are more easily removed from road surfaces. The increase in wind speed contributes to the increase in PM build-up by transporting particulates from roadside areas to the road surfaces and the airborne PM2.5 and PM10 increases with the increase in relative humidity. The study outcomes provide a step improvement in the understanding of the transfer processes of PM2.5 and PM10 between atmosphere and urban road surfaces, which in turn will contribute to the effective design of mitigation measures for urban stormwater and air pollution. | Tong Wei Buddhi Wijesiri Yingxia Li Ashantha Goonetilleke | 2020 | Journal of Environmental Sciences2020，32，12： | 0 |
| 17 | Biodegradation of waste refrigerator polyurethane by mealworms显示文摘Refrigerator insulation replacement results in discarding a large amount of waste refrigerator polyurethane(WRPU).Insect larvae like mealworms have been used to biodegrade pristine plastics.However,knowledge about mealworms degrading WRPU is scarce.This study presents an in-depth investigation of the degradation of WRPU by mealworms using the micro-morphology,composition,and functional groups of WRPU and the egested frass characteristics.It was found that the WRPU debris in frass was scoured,implying that WRPU was ingested and degraded by mealworms.The carbon content of WRPU-based frass was lower than that of WRPU,indicating that mealworms utilized WRPU as a carbon source.The urethane groups in WRPU were broken,and benzene rings’C=C and C–H bonds in the isocyanate disappeared after being ingested by mealworms.Thermal gravimetric-differential thermal gravimetry analysis showed that the weight loss temperature of WRPU-based frass was 300°C lower than that of WRPU,indicating that the thermal stability of WRPU deteriorated after being ingested.The carbon balance analysis confirmed that carbon in the ingested WRPU released as CO_(2) increased from 18.84%to 29.80%,suggesting that WRPU was partially mineralized.The carbon in the mealworm biomass ingesting WRPU decreased.The possible reason is that WRPU does not supply sufficient nutrients for mealworm growth,and the impurities and odor present in WRPU affect the appetite of the mealworms.The microbial community analysis indicated that WRPU exerts a considerable effect on the gut microorganism of mealworms.These findings confirm that mealworms degrade WRPU. | Ping Zhu Shuangshuang Gong Mingqiang Deng Bin Xia Yazheng Yang Jiakang Tang Guangren Qian Fang Yu Ashantha Goonetilleke Xiaowei Li | 2023 | Frontiers of Environmental Science & Engineering2023，17，3： | 0 |
| 18 | Factors influencing volatile hydrocarbon pollution in urban areas显示文摘Volatile hydrocarbons in urban environments pose significant risks to human and ecosystem health,resulting from wash-off into receiving waters during storm events.Effective mitigation strategies require understanding of the significance of contributing factors to pollutant generation and their processes.This study employed Bayesian Network modelling to investigate how anthropogenic and environmental factors influence volatile hydrocarbons build-up.The volatile hydrocarbons investigated were,benzene,toluene,ethylbenzene and xylene and styrene.Most volatile hydrocarbons showed statistically significant relationships with environmental factors rather than with anthropogenic factors.Additionally,the research study found that anthropogenic factors could largely contribute to releasing volatile hydrocarbon into the urban environment,while environmental factors are likely to determine their prevalence.The research outcomes will contribute to improving stormwater quality modelling approaches and strengthen the assessment of risk associated with stormwater pollutants in order to enhance stormwater reuse. | Buddhi Wijesiri An Liu Nian Hong Panfeng Zhu Bo Yang Xu Zhao Yuntao Guan Ashantha Goonetilleke | 2019 | Emerging Contaminants2019，5，1： | 0 |
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