Nutrients on asphalt parking surfaces in an urban environment

Diane Hope, Markus W. Naegeli, Andy H. Chan, Nancy Grimm

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Amounts of readily soluble nutrients on asphalt parking lot surfaces were measured at four locations in metropolitan Phoenix, Arizona, U.S.A. Using a rainfall simulator, short intense rainfall events were generated to simulate 'first flush' runoff. Samples were collected from 0.3 m2 sections of asphalt at 8 to 10 sites on each of four parking lots, during the pre-monsoon season in June-July 1998 and analyzed for dissolved NO3 --N, NH4 +-N, soluble reactive phosphate (SRP), and dissolved organic carbon (DOC). Runoff concentrations varied considerably for NO3 --N and NH4 +-N (between 0.1 and 115.8 mg L-1) and DOC (26.1 to 295.7 mg L-1), but less so for SRP (0.1 to 1.0 mg L-1), representing average surface loadings of 191.3, 532.2, and 1.8 mg m-2 respectively. Compared with similar data collected from undeveloped desert soil surfaces outside the city, loadings of NO3 --N and NH4 +-N on asphalt surfaces were greater by factors of 91 and 13, respectively. In contrast, SRP loads showed little difference between asphalt and desert surfaces. Nutrient fluxes in runoff from a storm that occurred shortly after the experiments were used to estimate input-output budgets for 3 of the lots under study. Measured outputs of DOC and SRP were similar to those predicted using rainfall and experimentally determined surface loadings, but for NH4 +-N and particularly for NO3 --N, estimated rainfall inputs and surface runoff were significantly higher than exports in runoff. This suggests that parking lots may be important sites for nutrient accumulation and temporary storage in arid urban catchments.

Original languageEnglish (US)
Pages (from-to)371-390
Number of pages20
JournalWater, Air, and Soil Pollution: Focus
Volume4
Issue number2-3
DOIs
StatePublished - 2004

Fingerprint

parking
Parking
asphalt
Asphalt
Nutrients
Runoff
runoff
phosphate
nutrient
dissolved organic carbon
Rain
rainfall
Phosphates
Organic carbon
desert soil
simulator
soil surface
monsoon
desert
catchment

Keywords

  • Ammonium
  • Arid urban environments
  • Asphalt parking lot surfaces
  • DOC
  • Nitrate
  • Phosphorus
  • Storm runoff

ASJC Scopus subject areas

  • Pollution
  • Earth and Planetary Sciences(all)
  • Earth-Surface Processes

Cite this

Nutrients on asphalt parking surfaces in an urban environment. / Hope, Diane; Naegeli, Markus W.; Chan, Andy H.; Grimm, Nancy.

In: Water, Air, and Soil Pollution: Focus, Vol. 4, No. 2-3, 2004, p. 371-390.

Research output: Contribution to journalArticle

Hope, Diane ; Naegeli, Markus W. ; Chan, Andy H. ; Grimm, Nancy. / Nutrients on asphalt parking surfaces in an urban environment. In: Water, Air, and Soil Pollution: Focus. 2004 ; Vol. 4, No. 2-3. pp. 371-390.
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