Identification

Title

The association of wildfire smoke with respiratory and cardiovascular emergency department visits in Colorado in 2012: A case crossover study

Abstract

In 2012, Colorado experienced one of its worst wildfire seasons of the past decade. The goal of this study was to investigate the relationship of local PM₂.₅ levels, modeled using the Weather Research and Forecasting Model with Chemistry, with emergency department visits and acute hospitalizations for respiratory and cardiovascular outcomes during the 2012 Colorado wildfires. Conditional logistic regression was used to assess the relationship between both continuous and categorical PM₂.₅ and emergency department visits during the wildfire period, from June 5th to July 6th 2012. For respiratory outcomes, we observed positive relationships between lag 0 PM₂.₅ and asthma/wheeze (1 h max OR 1.01, 95 % CI (1.00, 1.01) per 10 μg/m³; 24 h mean OR 1.04 95 % CI (1.02, 1.06) per 5 μg/m³), and COPD (1 h max OR 1.01 95 % CI (1.00, 1.02) per 10 μg/m³; 24 h mean OR 1.05 95 % CI (1.02, 1.08) per 5 μg/m³). These associations were also positive for 2-day and 3-day moving average lag periods. When PM₂.₅ was modeled as a categorical variable, bronchitis also showed elevated effect estimates over the referent groups for lag 0 24 h average concentration. Cardiovascular results were consistent with no association. Conclusions We observed positive associations between PM₂.₅ from wildfire and respiratory diseases, supporting evidence from previous research that wildfire PM₂.₅ is an important source for adverse respiratory health outcomes.

Resource type

document

Resource locator

Unique resource identifier

code

https://n2t.org/ark:/85065/d7542q66

codeSpace

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

geoscientificInformation

Keywords

Keyword set

keyword value

Text

originating controlled vocabulary

title

Resource Type

reference date

date type

publication

effective date

2016-01-01T00:00:00Z

Geographic location

West bounding longitude

East bounding longitude

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South bounding latitude

Temporal reference

Temporal extent

Begin position

End position

Dataset reference date

date type

publication

effective date

2016-06-04T00:00:00Z

Frequency of update

Quality and validity

Lineage

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

Limitations on public access

None

Responsible organisations

Responsible party

contact position

OpenSky Support

organisation name

UCAR/NCAR - Library

full postal address

PO Box 3000

Boulder

80307-3000

email address

opensky@ucar.edu

web address

http://opensky.ucar.edu/

name: homepage

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact