Evidence map›Paper›PMID 33649215›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2021

Ozone pollution in the North China Plain spreading into the late-winter haze season.

Ke Li, Daniel J Jacob, Hong Liao, Yulu Qiu, Lu Shen, Shixian Zhai, Kelvin H Bates, Melissa P Sulprizio, Shaojie Song, Xiao Lu and 6 more

Open access · hybridAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
42.6field-weighted citation impact, top 1% 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

39 citing papers in PubMed, 419 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. OVOCs drive radical cycling and ozone formation in background air.Environmental science and ecotechnology · 2026
    Article
  6. Variations in Vertical Distributions of OEnvironmental science & technology · 2025
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Divergent trends and regional disparities in PMFrontiers in public health · 2025
    Article
  13. Article
  14. Article
  15. Wintertime ozone surges: The critical role of alkene ozonolysis.Environmental science and ecotechnology · 2024
    Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Unveiling the underestimated direct emissions of nitrous acid (HONO).Proceedings of the National Academy of Sciences of the United States of America · 2023
    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

16 authors at 7 institutions in 3 countries.

Ke LiHarvard-NUIST Joint Laboratory for Air Quality and Climate, Nanjing University of Information Science and Technology, 210044 Nanjing, China.ORCID 0000-0002-9181-3562
Daniel J JacobJohn A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138; djacob@fas.harvard.edu hongliao@nuist.edu.cn.ORCID 0000-0002-6373-3100
Hong LiaoJiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, 210044 Nanjing, China; djacob@fas.harvard.edu hongliao@nuist.edu.cn.
Yulu QiuEnvironmental Meteorology Forecast Center of Beijing-Tianjin-Hebei, Beijing 100089, China.ORCID 0000-0002-2407-6566
Lu ShenJohn A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138.ORCID 0000-0003-2787-7016
Shixian ZhaiJohn A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138.ORCID 0000-0002-0073-7809
Kelvin H BatesJohn A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138.
Melissa P SulprizioJohn A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138.
Shaojie SongJohn A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138.
Xiao LuJohn A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138.ORCID 0000-0002-5989-0912
Qiang ZhangDepartment of Earth System Science, Tsinghua University, 100084 Beijing, China.
Bo ZhengInstitute of Environment and Ecology, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China.ORCID 0000-0001-8344-3445
Yuli ZhangKey Laboratory of Middle Atmosphere and Global Environment Observation, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China.ORCID 0000-0003-1405-5937
Jinqiang ZhangKey Laboratory of Middle Atmosphere and Global Environment Observation, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China.
Hyun Chul LeeSamsung Advance Institute of Technology, Suwon-si, Gyeonggi-do, 16678, Republic of Korea.ORCID 0000-0002-8838-4752
Su Keun KukSamsung Advance Institute of Technology, Suwon-si, Gyeonggi-do, 16678, Republic of Korea.
Harvard University · USChinese Academy of Sciences · CNSamsung (South Korea) · KRBeijing Meteorological Bureau · CNNanjing University of Information Science and Technology · CNTsinghua–Berkeley Shenzhen Institute · CNTsinghua University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Surface ozone is a severe air pollution problem in the North China Plain, which is home to 300 million people. Ozone concentrations are highest in summer, driven by fast photochemical production of hydrogen oxide radicals (HO

Indexed as

SeasonsVolatile Organic CompoundsAir PollutionChinaCOVID-19Crops, AgriculturalEnvironmental MonitoringEnvironmental PollutionHumansNitrogen OxidesOzonePandemicsParticulate MatterPublic HealthNitrogen OxidesOzoneParticulate MatterVolatile Organic Compoundsair qualityChinaemission controlhaze seasonwintertime ozone

Identifiers

PMID33649215
PMCPMC7958175
OpenAlexW3135158015

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.