Document type
Journal articles
Document subtype
Full paper
Title
Evaluating Sources of PAHs in Urban Streams Based on Land Use and Biomonitors
Participants in the publication
Sofia Augusto (Author)
Carla Gonzalez (Author)
Rute Vieira (Author)
Cristina Ma?guas (Author)
Dep. Biologia Vegetal
cE3c
cE3c
Cristina Branquinho (Author)
Dep. Biologia Vegetal
Dep. Biologia Vegetal
cE3c
cE3c
Summary
Toxic polycyclic aromatic hydrocarbons (PAHs) can be found in wastewaters and sewages released from industries and/or urban areas. When discharged untreated to stream waters, they can be a problem to human health. This work represents the first attempt to use PAH and metal concentrations in aquatic moss transplants together with land-use information to identify water pollution sources in urban areas. To do this, the moss Fontinalis antipyretica was collected from a natural stream and transplanted to four different streams in a densely populated area of Lisbon, Portugal. After three months of exposure, mosses were collected and analyzed for metals and for the 16 priority PAHs recommended by the U.S. EPA. Urban streams seem to have a scattered contamination of 6-ring PAHs. Correlations among land-use, metal concentrations, and PAH concentrations indicated that areas occupied by activities of tertiary and industrial sectors had higher PAH concentrations in transplanted mosses, mainly for the sum of the 16 EPA-PAHs and for the 2-, 3- and 5-ringed PAHs, than areas occupied by urban and wooded areas. These PAHs were associated with enhanced Zn and Cu and land use activities that linked the sites to high traffic density. Industrial land use influences PAH concentration in water up to 1000 m of distance from the stream, whereas tertiary sector land use influences it up to 500 m.
Date of Publication
2011-04-15
Where published
Environmental Science & Technology
Publication Identifiers
ISSN - 0013-936X,1520-5851
Publisher
American Chemical Society (ACS)
Number of pages
7
Starting page
3731
Last page
3738
Document Identifiers
DOI -
https://doi.org/10.1021/es1036332
URL -
http://dx.doi.org/10.1021/es1036332
Rankings
SCIMAGO Q1 (2011) - 4.63 - Environmental chemistry