Evidence map›Paper›PMID 34202026›Full record

ArticleToxics2021

Impact of a Large Fire and Subsequent Pollution Control Failure at a Coke Works on Acute Asthma Exacerbations in Nearby Adult Residents.

Tricia L Morphew, Arvind Venkat, John Graham, Matthew Mehalik, Norman Anderson, Deborah Gentile

Abstract read
In one paragraph

Article in Toxics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Article
  2. Reductions in Respiratory Hospital Visits after a Coal Coking Plant Closure: A Natural Experiment.American journal of respiratory and critical care medicine · 2025
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Tricia L MorphewMorphew Consulting LLC, Bothell, WA 98021, USA.
Arvind VenkatAllegheny Health Network, Pittsburgh, PA 15212, USA.
John GrahamClean Air Task Force, San Rafael, CA 94901, USA.
Matthew MehalikBreathe Project, Pittsburgh, PA 15219, USA.
Norman AndersonAnderson Environmental Health LLC, Winslow, ME 04901, USA.
Deborah GentileCommunity Partners in Asthma Care, McMurray, PA 15317, USA.ORCID 0000-0002-6278-8847

Funding

The Heinz Endowments E6450, E6462, E7476
6 · The paper itself

Abstract

Clairton, Pennsylvania, is home to the largest coke works facility in the United States (US). On 24 December 2018, a large fire occurred at this facility and damaged pollution control equipment. Although repairs were not completed for several months, production continued at pre-fire capacity and daily emissions increased by 24 to 35 times, with multiple exceedances of monitored levels of outdoor air pollution (OAP). The aim of this study was to objectively evaluate the impact of this industrial incident and resultant OAP exceedances on asthma morbidity. We assessed pre-fire and post-fire rate ratios (RR) of outpatient and emergency department (ED) visits for asthma exacerbations among nearby adult residents. Pre-fire versus post-fire RRs increased for both visit types: RR = 1.82 (95% CI: 1.30, 2.53;

Indexed as

asthmahydrogen sulfideoutdoor air pollutionparticulate mattersulfur dioxide

Identifiers

PMID34202026
PMCPMC8309726

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.