The Sierra Club - Lancaster Group will hold a meeting to discuss local air quality as well as the club's new initiative that employs PurpleAir sensors, managed by volunteers from various Lancaster County locations, to monitor the county's air quality. The meeting will be held at 7 p.m. on Wednesday, April 17, in the Stone Independent School, 480 New Holland Ave., Lancaster. It is open to the public.

During the session, the volunteers who manage monitors will have an opportunity to meet each other, talk about their findings, and discuss mutual concerns and the intricacies of the sensors. Sierra Club - Lancaster Group leaders who are heading up the project will guide the discussions and describe how the air monitor sensors work for those unfamiliar with them. One of the sensors will be on display. Possible next steps to address Lancaster's air quality also may be discussed.

PurpleAir is a crowd-funded, hyperlocal air quality monitoring network that transmits data through a Wi-Fi connection to a real-time, public access map. While not as robust as regulatory sensors, those used by PurpleAir can be a supplement to regional air monitors. Through an ongoing application process, the Lancaster Group distributes sensors to volunteers interested in hosting them.

Admission is free. Refreshments will be available. For more details, email Allison Zechman at afzechman@gmail.com or Jane Druce at janedruce@gmail.com. Complete information about the Sierra Club - Lancaster Group is available at http://www.lancastersierraclub.org.