Evidence map›Paper›PMID 31320831›Full record

ArticleAtmospheric environment (Oxford, England : 1994)2019

Influence of bromine and iodine chemistry on annual, seasonal, diurnal, and background ozone: CMAQ simulations over the Northern Hemisphere.

Golam Sarwar, Brett Gantt, Kristen Foley, Kathleen Fahey, Tanya L Spero, Daiwen Kang, Rohit Mathur, Hosein Foroutan, Jia Xing, Tomás Sherwen and 1 more

Open access · greenAbstract read
In one paragraph

Article in Atmospheric environment (Oxford, England : 1994), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
4.5field-weighted citation impact, top 5% of its field
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

23 citing papers in PubMed, 75 citations in OpenAlex.

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  8. Characterizing variations in ambient PMAtmospheric environment (Oxford, England : 1994) · 2023
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Release behavior of iodine during leaching and calcination of phosphate rock.Environmental science and pollution research international · 2021
    Article
  16. Article
  17. Article
  18. Article
  19. Impact of dimethylsulfide chemistry on air quality over the Northern Hemisphere.Atmospheric environment (Oxford, England : 1994) · 2020
    Article
  20. 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

11 authors at 5 institutions in 4 countries.

Golam SarwarNational Exposure Research Laboratory, US Environmental Protection Agency, RTP, North Carolina 27711, USA.
Brett GanttOffice of Air Quality Planning and Standards, US Environmental Protection Agency, RTP, NC 27711, USA.
Kristen FoleyNational Exposure Research Laboratory, US Environmental Protection Agency, RTP, North Carolina 27711, USA.
Kathleen FaheyNational Exposure Research Laboratory, US Environmental Protection Agency, RTP, North Carolina 27711, USA.
Tanya L SperoNational Exposure Research Laboratory, US Environmental Protection Agency, RTP, North Carolina 27711, USA.
Daiwen KangNational Exposure Research Laboratory, US Environmental Protection Agency, RTP, North Carolina 27711, USA.
Rohit MathurNational Exposure Research Laboratory, US Environmental Protection Agency, RTP, North Carolina 27711, USA.
Hosein ForoutanThe Charles E. Via, Jr. Department of Civil & Environmental Engineering, Virginia Tech, Blacksburg 24061, USA.
Jia XingState Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China.
Tomás SherwenWolfson Atmospheric Chemistry Laboratories, Department of Chemistry, University of York, UK.
Alfonso Saiz-LopezDepartment of Atmospheric Chemistry and Climate, Institute of Physical Chemistry Rocasolano, CSIC, Madrid 28006, Spain.
Environmental Protection Agency · USInstituto de Química Física Blas Cabrera · ESNational Centre for Atmospheric Science · GBState Key Joint Laboratory of Environment Simulation and Pollution Control · CNVirginia Tech · US

Funding

Intramural EPA EPA999999
6 · The paper itself

Abstract

Bromine and iodine chemistry has been updated in the Community Multiscale Air Quality (CMAQ) model to better capture the influence of natural emissions from the oceans on ozone concentrations. Annual simulations were performed using the hemispheric CMAQ model without and with bromine and iodine chemistry. Model results over the Northern Hemisphere show that including bromine and iodine chemistry in CMAQ not only reduces ozone concentrations within the marine boundary layer but also aloft and inland. Bromine and iodine chemistry reduces annual mean surface ozone over seawater by 25%, with lesser ozone reductions over land. The bromine and iodine chemistry decreases ozone concentration without changing the diurnal profile and is active throughout the year. However, it does not have a strong seasonal influence on ozone over the Northern Hemisphere. Model performance of CMAQ is improved by the bromine and iodine chemistry when compared to observations, especially at coastal sites and over seawater. Relative to bromine, iodine chemistry is approximately four times more effective in reducing ozone over seawater over the Northern Hemisphere (on an annual basis). Model results suggest that the chemistry modulates intercontinental transport and lowers the background ozone imported to the United States.

Indexed as

background ozonebromineCMAQiodineozone

Identifiers

PMID31320831
PMCPMC6638568
OpenAlexW2952397991

What OpenQuestion holds

Textmetadata
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.