Deepwater Horizon (IMAGE) Woods Hole Oceanographic Institution Caption A new study finds that dispersants used at the Deepwater Horizon site dramatically improved the air quality for responders and presumably reduced the number of days when the air quality was too poor and responders had to don respirators and/or had to suspend cleanup efforts. Credit Dan Torres, Woods Hole Oceanographic Institution Usage Restrictions with proper credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.