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Journal article

Can citizen science produce good science? Testing the OPAL Air Survey methodology, using lichens as indicators of nitrogenous pollution

This publication reports on the findings of a citizen science project carried out by SEI researchers as part of the Open Air Laboratories (OPAL) project, a UK National Lottery funded programme.

Mike Ashmore, Sarah West / Published on 15 April 2013

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Citation

Tregidgoa, D.J., S.E. West and M.R. Ashmore (2013). Can citizen science produce good science? Testing the OPAL Air Survey methodology, using lichens as indicators of nitrogenous pollution. Environmental Pollution, in press (available online April 2013).

Citizen science is having increasing influence on environmental monitoring as its advantages are becoming recognised. However methodologies are often simplified to make them accessible to citizen scientists. The authors tested whether a recent citizen science survey (the OPAL Air Survey) could detect trends in lichen community composition over transects away from roads. They hypothesized that the abundance of nitrophilic lichens would decrease with distance from the road, while that of nitrophobic lichens would increase. The hypothesized changes were detected along strong pollution gradients, but not where the road source was relatively weak, or background pollution relatively high. The authors conclude that the simplified OPAL methodology can detect large contrasts in nitrogenous pollution, but it may not be able to detect more subtle changes in pollution exposure. Similar studies are needed in conjunction with the ever-growing body of citizen science work to ensure that the limitations of these methods are fully understood.

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SEI authors

Profile picture of Mike Ashmore

Mike Ashmore

Sarah West

Centre Director

SEI York

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10.1016/j.envpol.2013.03.034 Closed access
Topics and subtopics
Air : Pollution
Related centres
SEI York

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