Aclima and Google publish a wide range of data on air quality and pollution and make it freely available to the scientific community.
The data could be invaluable for scientists to study pollution at a granular level, as they show block-by-block pollution levels over time in some large cities in California. Aclima CEO Davida Herzl said the two companies have performed more than 42 million hyperlocal air quality measurements across California over the course of four years.
Herzl made the announcement in a lecture entitled "Carbon, Pollution and the Current Pandemic" Collision from home on Thursday. Aclima has been collecting data in collaboration with Google since 2015. Google has integrated Aclima's sensor and analysis platform into Google Street View vehicles, which have been used to measure air pollutant and greenhouse gas levels in the San Francisco Bay Area, Los Angeles and Central Valley, California over the course of four years. Fixed sensors have also been installed in some cities in California.
The technology provides a block-by-block view of air pollution that can help identify sources of pollution and suggest methods to reduce emissions on a scale. The pollutants analyzed include carbon dioxide (CO2), ozone (O3), nitrogen dioxide (NO2), nitrogen oxide (NO), methane (CH4), soot (BC) and particulate matter.
The company recently used the sensors to measure air pollution in San Diego, California, before and during the pandemic. As expected, according to Aclima there was a 33% decrease in pollution, such as B. the soot concentration (often from diesel fuel).
With this data, Aclima and Google want to support research in areas that can benefit from and develop high-quality air pollution and greenhouse gas data that are measured at this spatial resolution. Aclima and Google previously published a selection from the larger data set on hyperlocal air quality for more than 150 researchers. For example, CalTrans awarded a grant to earlier this year Antonio Bento, Professor at the USC School of Public Policy, combines the subset of this research data from Los Angeles with data from the Performance Measurement System (PeMS) to assess the environmental benefits of pricing in the event of congestion.
By providing access to this complete California air quality data set for researchers, Aclima and Google hope to help the scientific community advance climate analysis and action.
In parallel to this research-driven initiative, Aclima has expanded its own fleet and software platforms to promote the widespread use of hyperlocal data in governments, communities and businesses, and to accelerate climate action. The company announced key new customers this year, including the Bay Area air quality management district, which has subscribed to Aclima's hyperlocal air quality data for the region with nine counties, and the San Diego County Air Pollution Control District, which is designed to support this port- and border communities.