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Cocaine and other illicit drugs in airborne particulates in urban environments: a reflection of social conduct and population size.

Authors
  • Viana, M1
  • Postigo, C
  • Querol, X
  • Alastuey, A
  • López de Alda, M J
  • Barceló, D
  • Artíñano, B
  • López-Mahia, P
  • García Gacio, D
  • Cots, N
  • 1 Institute for Environmental Assessment and Water Research (IDAEA-CSIC), C/Jordi Girona 18, 08034 Barcelona, Spain. [email protected] , (Spain)
Type
Published Article
Journal
Environmental pollution (Barking, Essex : 1987)
Publication Date
May 01, 2011
Volume
159
Issue
5
Pages
1241–1247
Identifiers
DOI: 10.1016/j.envpol.2011.01.032
PMID: 21330024
Source
Medline
License
Unknown

Abstract

Levels of cocaine and other psychoactive substances in atmospheric particulate matter (PM) were determined in urban environments representing distinct social behaviours with regard to drug abuse: night-life, university and residential areas. Three cities (with population>1 million and <0.3 million inhabitants) were selected. Mean daily levels of drugs in PM were 11-336 pg/m3 for cocaine, 23-34 pg/m3 for cannabinoids, and 5-90 pg/m3 for heroin. The highest levels were recorded on weekends, with factors with respect to weekdays of 1-3 for cocaine, 1-2 for cannabinoids and 1.1-1.7 for heroin. Higher levels were detected in the night-life areas, pointing towards consumption and trafficking as major emission sources, and possibly ruling out drug manufacture. The similarities in temporal trends at all sites suggested a city-scale transport of psychoactive substances. Correlations were detected between cocaine and amphetamine consumption (r2=0.98), and between heroin and cannabinoids (r2>0.82).

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