This research study, conducted under contract from the Department of Resources recycling and Recovery (CalRecycle), explores the ozone formation potential of emissions from greenwaste composting. The research team compared the emissions from two sets of composting windrows of differing ages, one containing a pseudo-biofilter cap made up of oversized materials from the composting process, and the other without the cap. The study found composting emissions are mostly small alcohols which have low reactivity and low ozone formation potential.
