Willamette River plankton & water-quality updates
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By Oregon Water Science Center
September 26, 2024
Plankton sampling results from the Willamette River in Portland, Oregon.
Willamette River plankton and water-quality updates 2024
Willamette River plankton and water-quality updates 2024
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Willamette River plankton & water-quality update: August 2024
See what Phytoplankton we saw in our Willamette River water samples on August 14, 2024.
Willamette River plankton & water-quality update: July 2024
See what Phytoplankton we saw in our Willamette River water samples on July 8, 18, and 24th, 2024.
Willamette River plankton & water-quality update: May 2024
See what Phytoplankton we saw in our Willamette River water samples on May 14, 2024.
Harmful Algal Blooms and Drinking Water in Oregon
Harmful algal blooms are a major environmental problem in all 50 states.
Plankton occurrence in the Willamette River, Portland, Oregon, 2024 (ver. 2.0, September 2024)
This data release contains plankton sampling results collected in the Willamette River in Portland, Oregon. The data release will be updated with new results as they are collected. The samples in this data release were collected at USGS stations 453027122400000 (Willamette River below the Holgate Channel), 452913122394300 (Ross Island Lagoon – Willamette River), and 453833122462700 (Willamette Riv
Plankton sampling results from the Willamette River in Portland, Oregon.
Willamette River plankton and water-quality updates 2024
Willamette River plankton and water-quality updates 2024
-
Willamette River plankton & water-quality update: August 2024
See what Phytoplankton we saw in our Willamette River water samples on August 14, 2024.
Willamette River plankton & water-quality update: July 2024
See what Phytoplankton we saw in our Willamette River water samples on July 8, 18, and 24th, 2024.
Willamette River plankton & water-quality update: May 2024
See what Phytoplankton we saw in our Willamette River water samples on May 14, 2024.
Harmful Algal Blooms and Drinking Water in Oregon
Harmful algal blooms are a major environmental problem in all 50 states.
Plankton occurrence in the Willamette River, Portland, Oregon, 2024 (ver. 2.0, September 2024)
This data release contains plankton sampling results collected in the Willamette River in Portland, Oregon. The data release will be updated with new results as they are collected. The samples in this data release were collected at USGS stations 453027122400000 (Willamette River below the Holgate Channel), 452913122394300 (Ross Island Lagoon – Willamette River), and 453833122462700 (Willamette Riv