Title of article :
Impact of the 1998 Gobi dust event on hospital admissions
in the Lower Fraser Valley, British Columbia
C.M. Bennett a، نويسنده , , ?، نويسنده , , I.G. McKendry، نويسنده , , S. Kelly c، نويسنده , , K. Denike b، نويسنده , , T. Koch b، نويسنده ,
Issue Information :
هفته نامه با شماره پیاپی سال 2006
The adverse public health impacts of anthropogenically derived particulate matter have been well documented, with measurable
increases in both morbidity and mortality rates associated with high particulate matter pollution events. Most current research has
focussed on the health impacts of anthropogenically derived particulate matter, and there is a distinct scarcity of literature that
examines the role of naturally derived particulate matter and adverse health impacts in the urban context.
This study of a Gobi desert dust event in the Greater Vancouver region of British Columbia, Canada, in spring of 1998 provided a
unique opportunity to identify the adverse health effects related to naturally derived particulate matter in a large urban setting.
Respiratory and cardiac hospitalizations were examined for a three-year period (January 1997 to December 1999), with the Gobi dust
event occurring in late April 1998. A meteorological analogue was identified for spring 1997 in order to identify the public health
impacts associated with anthropogenically derived particulate matter and those impacts associated with the presence of the Gobi
Results indicate that this Gobi dust event was not associated with an excess of hospitalizations in the Greater Vancouver region.
Peak particulate matter concentrations of Gobi desert dust in the airshed were only associated with an additional one or two
hospitalizations per 100,000 population for respiratory and cardiac illnesses, and these increases were not distinguishable from the
‘normal’ variability in hospitalization rates.
Despite high particulate matter concentrations, fine particle size, presence of heavy metals in the dust and extended exposure
periods, it appears that the Gobi desert dust event was not associated with significant risk to public health in GreaterVancouver, British
Columbia. Therefore it is concluded that naturally derived particulate matter is more benign than particulate matter of anthropogenic
origin, and thus poses a low risk to health for the general public.
Journal title :
Science of the Total Environment