Methane Emissions from Dairy Operations in California's San Joaquin Valley Evaluated Using Airborne Flux Measurements.

State inventories indicate that dairy operations account for nearly half of California's methane budget. Recent analyses suggest, however, that these emissions may be underestimated, complicating efforts to develop emission reduction strategies. Here, we report estimates of dairy methane emissions in the southern San Joaquin Valley (SJV) of California in June 2021 using airborne flux measurements.

Observing Annual Trends in Vehicular CO Emissions.

Transportation emissions are the largest individual sector of greenhouse gas (GHG) emissions. As such, reducing transportation-related emissions is a primary element of every policy plan to reduce GHG emissions. The Berkeley Environmental Air-quality and CO Observation Network (BEACON) was designed and deployed with the goal of tracking changes in urban CO emissions with high spatial (∼1 km) and temporal (∼1 hr) resolutions while allowing the identification of trends in individual emission sectors.

Contribution of Organic Nitrates to Organic Aerosol over South Korea during KORUS-AQ.

The role of anthropogenic NO emissions in secondary organic aerosol (SOA) production is not fully understood but is important for understanding the contribution of emissions to air quality. Here, we examine the role of organic nitrates (RONO) in SOA formation over the Korean Peninsula during the Korea-United States Air Quality field study in Spring 2016 as a model for RONO aerosol in cities worldwide. We use aircraft-based measurements of the particle phase and total (gas + particle) RONO to explore RONO phase partitioning.

Measuring Group Process in Nurse-Facilitated Support Groups for Psychosocial Club Members.

Nearly half of patients with serious mental illness (SMI) lack friends and social connectedness-building blocks of recovery. While support groups have been found to promote friendship-building, there is little information about the process. This study examined the use of nurse-facilitated support groups by Psychosocial club members with SMI.