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Ammonia concentrations from high-elevation Himalayan forests and a Sri Lankan tropical forest, 2022-2024

[This dataset is embargoed until April 1, 2026]. The dataset contains field measurements of atmospheric ammonia under forest canopies in the Himalayas in India, Pakistan, Nepal and Bhutan and in a tropical forest in Sri Lanka between 2022 and 2024. Monthly mean atmospheric ammonia concentrations are provided from 33 sites across the five countries. This dataset provides the first ever empirical measurements of ammonia from South Asian forests and can be used to estimate ecological impact, inform policy decisions, validate atmospheric chemistry transport models and satellite data and design future air quality and ecological monitoring in the region. The ammonia concentration data was collected monthly by deploying passive citric acid-coated samplers at the study locations. Full details about this dataset can be found at https://doi.org/10.5285/9c4aee69-3693-4f18-97c8-ff740045f3de

Simple

Date (Publication)
2025-04-03
Identifier
https://catalogue.ceh.ac.uk/id/9c4aee69-3693-4f18-97c8-ff740045f3de
Identifier
doi: / 10.5285/9c4aee69-3693-4f18-97c8-ff740045f3de
Other citation details
Deshpande, A., Ellis, C., Pradhan, S.P., Sharma, S., Asad, S.A., Tshering, D., Wangchuk, K., Chatterjee, S., Weerakoon, B., Nissanka, S.P., Ganguly, D., Prabhashwara, T., Duarte, F., Stephens, A., Iwanicka, A., Sutton, M.A., Jones, M.R. (2025). Ammonia concentrations from high-elevation Himalayan forests and a Sri Lankan tropical forest, 2022-2024. NERC EDS Environmental Information Data Centre 10.5285/9c4aee69-3693-4f18-97c8-ff740045f3de
Author
  UK Centre for Ecology & Hydrology - Deshpande, A.
https://orcid.org/0000-0002-2095-1271
Author
  Royal Botanic Garden Edinburgh - Ellis, C.
Author
  UK Centre for Ecology & Hydrology - Pradhan, S.P.
Author
  Kathmandu University, Nepal - Sharma, S.
Author
  COMSATS University, Pakistan - Asad, S.A.
Author
  Sherubtse College, Bhutan - Tshering, D.
Author
  Sherubtse College, Bhutan - Wangchuk, K.
Author
  The Nature Conservancy, India - Chatterjee, S.
Author
  University of Peradeniya - Weerakoon, B.
Author
  University of Peradeniya - Nissanka, S.P.
Author
  National Centre for Sustainable Coastal Management, India - Ganguly, D.
Author
  Dilmah Conservation - Prabhashwara, T.
Author
  UK Centre for Ecology & Hydrology - Duarte, F.
Author
  UK Centre for Ecology & Hydrology - Stephens, A.
Author
  UK Centre for Ecology & Hydrology - Iwanicka, A.
Author
  UK Centre for Ecology & Hydrology - Sutton, M.A.
Author
  UK Centre for Ecology & Hydrology - Jones, M.R.
Custodian
  NERC EDS Environmental Information Data Centre
Publisher
  NERC EDS Environmental Information Data Centre
Owner
  UK Centre for Ecology & Hydrology
Point of contact
  UK Centre for Ecology & Hydrology - Deshpande, A.G.
https://orcid.org/0000-0002-2095-1271
Access constraints
otherRestrictions Other restrictions
Other constraints
Embargoed
Use constraints
otherRestrictions Other restrictions
Other constraints
This resource is available under the terms of the Open Government Licence
Use constraints
otherRestrictions Other restrictions
Other constraints
If you reuse this data, you should cite: Deshpande, A., Ellis, C., Pradhan, S.P., Sharma, S., Asad, S.A., Tshering, D., Wangchuk, K., Chatterjee, S., Weerakoon, B., Nissanka, S.P., Ganguly, D., Prabhashwara, T., Duarte, F., Stephens, A., Iwanicka, A., Sutton, M.A., Jones, M.R. (2025). Ammonia concentrations from high-elevation Himalayan forests and a Sri Lankan tropical forest, 2022-2024. NERC EDS Environmental Information Data Centre https://doi.org/10.5285/9c4aee69-3693-4f18-97c8-ff740045f3de
Spatial representation type
textTable Text, table
Metadata language
EnglishEnglish
Character set
utf8 UTF8
Topic category
  • Environment
  • Climatology, meteorology, atmosphere
Begin date
2022-01-01
End date
2024-12-31
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Unique resource identifier
WGS 84
Distribution format
  • Comma-separated values (CSV) ()

Distributor
  NERC EDS Environmental Information Data Centre
Hierarchy level
dataset Dataset
Other
dataset

Conformance result

Date (Publication)
2010-12-08
Statement
Starting May 2022, triplicate sets of UKCEH Adapted Low-cost Passive High Absorption (ALPHA®) samplers were deployed under the forest canopy at sites buffered by at least 500 m of continuous forest on all sides. The exposed samplers were replaced with fresh ones at the end of each month. The exposed samplers from India, Nepal, Bhutan and Sri Lanka were analysed at the National Centre for Sustainable Coastal Management, Chennai and samplers from Pakistan were analysed at UKCEH, Edinburgh using the salicylate method. Blank samplers for each period were also analysed. The analysis provides the concentration of ammonium ions absorbed by each sampler. This is further converted to atmospheric ammonia concentration using an uptake rate which determined annually in the UK by co-locating the ALPHA samplers with UKCEH DEnuder for Long-Term Atmospheric sampling (DELTA®) samplers at multiple UK sites. The monthly concentration at each site is calculated as the average of the concentration measured by each sampler in the triplicate set. Obvious outliers are removed before calculating the average. Further quality assurance is performed based on comments from site operators regarding physical damage to the sampler, wet sampler, etc.
File identifier
9c4aee69-3693-4f18-97c8-ff740045f3de XML
Metadata language
EnglishEnglish
Character set
ISO/IEC 8859-1 (also known as Latin 1) 8859 Part 1
Hierarchy level
dataset Dataset
Hierarchy level name
dataset
Date stamp
2025-04-08T10:30:02
Metadata standard name
UK GEMINI
Metadata standard version
2.3
Point of contact
  NERC EDS Environmental Information Data Centre
Lancaster Environment Centre, Library Avenue, Bailrigg , Lancaster , LA1 4AP , UK
https://eidc.ac.uk/
 
 

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