Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

AC4 News

Smog over a evergreen forest, mountains in background

Arctic Urban Air Pollution Challenges: Assessment from the Alaskan Layered Pollution and Chemical Analysis (ALPACA) Field Experiment

An overview of the Alaskan Layered Pollution And Chemical Analysis (ALPACA) field experiment, supported by AC4, provides the first large-scale assessment of winter air quality issues in Arctic urban areas, detailing unique indoor and outdoor pollution issues.

Arctic Urban Air Pollution Challenges: Assessment from the Alaskan Layered Pollution and Chemical Analysis (ALPACA) Field Experiment Read More »

smokestack emitting smoke

Air Pollution Interactions with Weather and Climate Extremes: Current Knowledge, Gaps, and Future Directions

Researchers funded by AC4, MAPP, and NIDIS publish a comprehensive report on the relationships between air pollution and weather/climate extremes such as extreme precipitation, floods, droughts, wildfires, and heat waves, calling for interdisciplinary collaborations and enhanced observational and modeling capabilities.

Air Pollution Interactions with Weather and Climate Extremes: Current Knowledge, Gaps, and Future Directions Read More »

Scroll to Top