@electronic{cleanair.london,
   title       = {Carcinogenic diesel exhaust disclosed for every significant road in London | Clean Air in London}, 
   url         = {http://cleanair.london/sources/carcinogenic-diesel-exhaust-disclosed-for-every-significant-road-in-london/},
   biburl      = {https://puma.uni-kassel.de/url/1e78f7214dc76d54cdd68676f79dfdca/stumme},
   keywords    = {air airprobe everyaware pollution sitc},
   added-at    = {2015-03-17T11:39:44.000+0100},
   description = {},
   interhash   = {1e78f7214dc76d54cdd68676f79dfdca}, 
   intrahash   = {1e78f7214dc76d54cdd68676f79dfdca}
}

@electronic{cleanair.london,
   title       = {Clean Air in London | Campaigning to achieve urgently and sustainably compliance with World Health Organisation guidelines for air quality throughout London}, 
   url         = {http://cleanair.london/},
   biburl      = {https://puma.uni-kassel.de/url/78ea85d2aa099ff999228dd40f43f882/stumme},
   keywords    = {air airprobe everyaware pollution sitc},
   added-at    = {2015-03-17T11:39:10.000+0100},
   description = {},
   interhash   = {78ea85d2aa099ff999228dd40f43f882}, 
   intrahash   = {78ea85d2aa099ff999228dd40f43f882}
}

@electronic{tomchance.org,
   title       = {Mapping dirty London | Tom Chance}, 
   url         = {http://tomchance.org/2013/09/12/mapping-dirty-london/},
   biburl      = {https://puma.uni-kassel.de/url/0cc6397ed5d02fcb15e0bb6ccd09c89a/stumme},
   keywords    = {air airprobe everyaware london map pollution sitc},
   added-at    = {2015-03-17T11:35:00.000+0100},
   description = {},
   interhash   = {0cc6397ed5d02fcb15e0bb6ccd09c89a}, 
   intrahash   = {0cc6397ed5d02fcb15e0bb6ccd09c89a}
}

@electronic{www.epa.gov,
   title       = {Air | Citizen Science | Region 2 | US EPA}, 
   url         = {http://www.epa.gov/citizenscience/air.html},
   biburl      = {https://puma.uni-kassel.de/url/7d86f1f9867a4891d2924cc0a9a667a9/stumme},
   keywords    = {air airprobe citizen epa everyaware pollution science sitc},
   added-at    = {2015-02-02T11:45:10.000+0100},
   description = {},
   interhash   = {7d86f1f9867a4891d2924cc0a9a667a9}, 
   intrahash   = {7d86f1f9867a4891d2924cc0a9a667a9}
}

@electronic{www.hlug.de,
   title       = {Hessisches Landesamt für Umwelt und Geologie: Luftmessdaten}, 
   url         = {http://www.hlug.de/?id=7122&view=messwerte&detail=download&station=1415},
   biburl      = {https://puma.uni-kassel.de/url/9e4a39b21a005385d0ce9947f5a4f421/stumme},
   keywords    = {EveryAware Kassel Luftverschmutzung Messstation air airprobe pollution sitc},
   added-at    = {2014-01-30T11:20:06.000+0100},
   description = {},
   interhash   = {9e4a39b21a005385d0ce9947f5a4f421}, 
   intrahash   = {9e4a39b21a005385d0ce9947f5a4f421}
}

@electronic{www.da-sense.de,
   title       = {da_sense}, 
   url         = {http://www.da-sense.de/},
   biburl      = {https://puma.uni-kassel.de/url/7ffdafee1955ebb23fcdf2c5b847ee9f/stumme},
   keywords    = {da-sense everyaware noise noisesense pollution sitc widenoise},
   added-at    = {2013-07-18T23:42:45.000+0200},
   description = {},
   interhash   = {7ffdafee1955ebb23fcdf2c5b847ee9f}, 
   intrahash   = {7ffdafee1955ebb23fcdf2c5b847ee9f}
}