According to USGS data, in 2020 dissolved oxygen levels dropped to as low as 2.8 milligrams per liter in the Delaware River at the Commodore Barry Bridge, which links New Jersey with Chester, ...

File photo: The Benjamin Franklin Bridge spanning the Delaware River between Camden N.J., foreground, and Philadelphia is seen, Wednesday, Feb. 10, 2021. (AP Photo/Matt Rourke) From Philly and the Pa.

Figure 1: N 2 O emissions at 23 sampling sites along the Grand River. Twenty-three sites along the length of the Grand River, Ontario, Canada (Supplementary Fig. S1) were sampled twice a day (before ...

MOBILE, Alabama -- For more than a week in August, the water in Mobile Bay contained some of the lowest levels of oxygen on record. The amount of oxygen dissolved in the bay is of critical importance ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...