Evidence map›Paper›PMID 40963783›Full record

ArticleACS ES&T air2025

Anthropogenic Emissions in Coastal India Strongly Influence New Particle Formation and Cloud Condensation Nuclei Activity.

Aishwarya Singh, Basudev Swain, Mathew Sebastian, S N Tripathi, Mira Pöhlker, James Allan, Gordon McFiggans, Ulrich Pöschl, Hang Su, Scot T Martin and 6 more

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in ACS ES&T air, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. 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.

Aishwarya SinghEnvironmental Engineering Division, Department of Civil Engineering, Indian Institute of Technology Madras, Chennai 600036, India.
Basudev SwainInstitute of Environmental Physics, Department of Physics, University of Bremen, Bremen 28359, Germany.
Mathew SebastianCenter for Earth, Ocean, and Atmospheric Sciences, University of Hyderabad, Hyderabad 500046, India.
S N TripathiDepartment of Civil Engineering and Sustainable Energy Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India.ORCID https://orcid.org/0000-0002-6402-4680
Mira PöhlkerFaculty of Physics and Earth Sciences, Leipzig Institute for Meteorology, Leipzig University, Leipzig 04103, Germany.
James AllanDepartment of Earth and Environmental Sciences, School of Natural Sciences, University of Manchester, Manchester M13 9PL, U.K.ORCID https://orcid.org/0000-0001-6492-4876
Gordon McFiggansDepartment of Earth and Environmental Sciences, School of Natural Sciences, University of Manchester, Manchester M13 9PL, U.K.ORCID https://orcid.org/0000-0002-3423-7896
Ulrich PöschlMultiphase Chemistry Department, Max Planck Institute for Chemistry, Mainz 55128, Germany.ORCID https://orcid.org/0000-0003-1412-3557
Hang SuMultiphase Chemistry Department, Max Planck Institute for Chemistry, Mainz 55128, Germany.ORCID https://orcid.org/0000-0003-4889-1669
Scot T MartinDepartment of Earth and Planetary Sciences, Harvard University, Cambridge, Massachusetts 02138, United States.ORCID https://orcid.org/0000-0002-8996-7554
Meinrat O AndreaeMultiphase Chemistry Department, Max Planck Institute for Chemistry, Mainz 55128, Germany.
R RavikrishnaCentre for Atmospheric and Climate Sciences, Indian Institute of Technology Madras, Chennai 600036, India.
Yafang ChengAerosol Chemistry Department, Max Planck Institute for Chemistry, Mainz 55128, Germany.ORCID https://orcid.org/0000-0003-4912-9879
Hugh CoeDepartment of Earth and Environmental Sciences, School of Natural Sciences, University of Manchester, Manchester M13 9PL, U.K.
Pengfei LiuSchool of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, Georgia 30332-0340, United States.ORCID https://orcid.org/0000-0001-7280-9720
Sachin S GuntheEnvironmental Engineering Division, Department of Civil Engineering, Indian Institute of Technology Madras, Chennai 600036, India.ORCID https://orcid.org/0000-0002-7903-7783

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Aerosols influence Earth's energy balance and hydrological cycle as cloud condensation nuclei (CCN), yet uncertainties persist in how anthropogenic emissions alter their abundance and climate-relevant properties. Abrupt, large-scale reductions in human activities provided a natural experiment to quantify anthropogenic impact on aerosol-cloud-climate interactions in coastal India. Combining chemical and microphysical measurements under drastically reduced and subsequently reintroduced emission scenarios, we reveal that CCN concentrations increased by 80-250% postlockdown. This surge coincided with increased new particle formation (NPF) event frequency and enhanced particle growth rates. Postlockdown air masses shifted from marine to continental sources, revealing that anthropogenic organic matter (OM), despite lower hygroscopicity, dominated particle growth to CCN-active sizes, offsetting hygroscopicity limitations. These findings demonstrate how shifts in anthropogenic activity can strongly impact aerosol-cloud interaction potential, even under varying air mass influences, and provide a reference for understanding the atmospheric effects of future air quality interventions.

Indexed as

aerosol-cloud interactionsanthropogenic perturbationscloud condensation nuclei (CCN)new particle formation (NPF)organic aerosolstropical coastal India

Identifiers

PMID40963783
PMCPMC12439333

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LicenceCC BY-NC-ND
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Registered trials

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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.