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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Higgins, Neil Desta, Mesfin Berhanu Bruen, Michael Johnston, Paul |
| Copyright Year | 2007 |
| Abstract | Highway runoff has been identified as a significant source of contaminants that impact on the receiving aquatic environment. Several studies have been completed documenting the characteristics of highway runoff and its implication to the receiving water in the UK and elsewhere. However, very little information is available for Ireland. The objective of this study was to determine the quality of highway runoff from major Irish roads under the current road drainage design and maintenance practice. Four sites were selected from the M4 and the M7 motorways outside Dublin. Automatic samplers and continuous monitoring devices were deployed to sample and monitor the runoff quality and quantity. More than 42 storm events were sampled and analysed for the heavy metals Cd, Cu, Pb, and Zn, 16 US EPA specified PAHs, volatile organic compounds including MTBE, and a number of conventional pollutants. All samples were analysed based on the Standard Methods. Significant quantities of solids and heavy metals were detected at all sites. PAHs were not detected very often, but when detected the values were different from quantities observed in UK highways. The heavy metal concentrations were strongly related to the total suspended solids concentrations, which has a useful implication for runoff management strategies. No strong relationship was discovered between pollutant concentrations and event characteristics such as rainfall intensity, antecedent dry days (ADD), or rainfall depth (volume). This study has demonstrated that runoff from Irish motorways was not any cleaner than in the UK although the traffic volume at the monitored sites was relatively smaller. This calls for a site specific investigation of highway runoff quality before adopting a given management strategy. |
| Starting Page | 366 |
| Ending Page | 371 |
| Page Count | 6 |
| File Format | HTM / HTML PDF |
| ISSN | 14640325 |
| Volume Number | 9 |
| Issue Number | 4 |
| Journal | Journal of Environmental Monitoring |
| DOI | 10.1039/b702327h |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Subscribed |
| Subject Keyword | Cu EPA Standard Methods UK Ireland Dublin US Republic of Ireland M4 carbine Westlink M7 Lead Volatile organic compound Methyl tert-butyl ether Heavy metals Total suspended solids Attention deficit hyperactivity disorder |
| Content Type | Text |
| Resource Type | Article |
| Subject | Public Health, Environmental and Occupational Health Management, Monitoring, Policy and Law |
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