Who should measure air quality in modern cities? The example of decentralization of urban air quality monitoring in Krasnoyarsk (Siberia, Russia)

Researchers have warned that the paradigm about who should measure air quality (AQ) in cities can change as
low-cost commercial sensors for monitoring atmospheric composition gain global popularity. The new paradigm
implies the expansion of the traditionally governmental responsibilities for AQ monitoring (to collect, interpret,
and explain the data) to previously uninvolved actors. This study reports a first practical example of such
changed AQ paradigm that occurred in a large industrial city of Krasnoyarsk (Russia). We describe how severe
problems with urban AQ and a limited access to the AQ data from governmental sensors triggered decentral-
ization of the AQ monitoring in the city. The decentralization is manifested by the fact that both governmental
network and crowdfund-based activist AQ network, are being used for scientific and, to some extent, advisory
purposes. The decentralization was foremost established due to the ambiguous quantitative information about
AQ provided to users by the governmental network, exacerbated by efficient alternatives for alleviating this gap,
offered by the activists. The unique decentralization of AQ monitoring in Krasnoyarsk can transform into the
synergy between the government and citizen action aimed on easing air pollution as the governmental organi-
zations can efficiently reinforce the resources (funds and manpower), and provide legal and technical support,
while civic action groups with established audience can consolidate targeted groups of citizens for formulating
efficient city-wide strategies in AQ management. Such synergy can become an inspiring example for the cities
with degraded AQ, where the official monitoring is plagued by financial or technological limitations.