Skip to main content
U.S. flag

An official website of the United States government

Explore Search: pH

Filter Total Items: 1133
publication
image of publications layered on a wooden table

Metal contamination of fish in low-pH lakes and potential implications for piscivorous wildlife

Data Release
Collage of images of an earthquake, scientists in flood with instruments, a volcano erupting, and seismic illustration.

Prediction grids of pH for the Mississippi River Valley Alluvial and Claiborne Aquifers

publication
image of publications layered on a wooden table

Disentangling the effects of low pH and metal mixture toxicity on macroinvertebrate diversity

publication
image of publications layered on a wooden table

Modeling Carbon Dioxide, pH and Un-Ionized Ammonia Relationships in Serial Reuse Systems

publication
image of publications layered on a wooden table

Cumulative effects of nutrients and pH on the plankton of two mountain lakes

publication
image of publications layered on a wooden table

Synthesis of illite-smectite from smectite at Earth surface temperatures and high pH

publication
image of publications layered on a wooden table

The influence of pH on biotite dissolution and alteration kinetics at low temperature

publication
image of publications layered on a wooden table

Experimental study of pyrite oxidation at pH 6-9 and 30 degrees C

Data Release
Collage of images of an earthquake, scientists in flood with instruments, a volcano erupting, and seismic illustration.

Disentangling the effects of low pH and metal mixture toxicity on macroinvertebrate diversity: datasets

map
Collage of USGS Maps.

Predicted pH at the domestic and public supply drinking water depths, Central Valley, California

publication
image of publications layered on a wooden table

Storms and pH of dam releases affect downstream phosphorus cycling in an arid regulated river

publication
image of publications layered on a wooden table

Biological low pH Mn(II) oxidation in a manganese deposit influenced by metal-rich groundwater

publication
image of publications layered on a wooden table

Diel behavior of rare earth elements in a mountain stream with acidic to neutral pH

publication
image of publications layered on a wooden table

The role of pH in structuring communities of Maine wetland macrophytes and chironomid larvae (Diptera)

publication
image of publications layered on a wooden table

pH dependence of iron photoreduction in a rocky mountain stream affected by acid mine drainage

Data Release
Collage of images of an earthquake, scientists in flood with instruments, a volcano erupting, and seismic illustration.

Data for machine learning predictions of pH in the glacial aquifer system, northern USA

publication
image of publications layered on a wooden table

Rates of zinc and trace metal release from dissolving sphalerite at pH 2.0-4.0

publication
image of publications layered on a wooden table

Factors regulating nitrification in aquatic sediments: Effects of organic carbon, nitrogen availability, and pH

publication
image of publications layered on a wooden table

Relations among pH, sulfate, and metals concentrations in anthracite and bituminous coal-mine discharges, Pennsylvania

publication
image of publications layered on a wooden table

Experimental chemical weathering of various bedrock types at different pH-values. 1. Sandstone and granite

publication
image of publications layered on a wooden table

Identification of Mn(II)-oxidizing bacteria from a low-pH contaminated former uranium mine

publication
image of publications layered on a wooden table

Processes controlling dissolved oxygen and pH in the upper Willamette River basin, Oregon, 1994

Data Release
Collage of images of an earthquake, scientists in flood with instruments, a volcano erupting, and seismic illustration.

Columbia River Basin calcium and pH data accessed on 2022 March 31 for dreissenid mussel risk assessments

publication
image of publications layered on a wooden table

Ecogeochemistry of the subsurface food web at pH 0–2.5 in Iron Mountain, California, U.S.A.

Charts or Graphs
Distribution of hydrothermal features in Yellowstone as a function of their pH

Distribution of hydrothermal features in Yellowstone as a function of their pH
Photography
Kīlauea Volcano's older "61g" lava flows have now inflated (left si...

Kīlauea's older "61g" lava flows have now inflated (left side of ph...
publication
image of publications layered on a wooden table

Negative pH, efflorescent mineralogy, and consequences for environmental restoration at the iron mountain superfund site, California

publication
image of publications layered on a wooden table

The effects of low pH and elevated aluminum on yellowstone cutthroat trout (Oncorhynchus clarki bouvieri)

publication
image of publications layered on a wooden table

Growth and condition of bluegills in Wisconsin lakes: effects of population density and lake pH

publication
image of publications layered on a wooden table

Temperature, pH, conductance, and dissolved oxygen in cross sections of 11 Lake Michigan tributaries, 1994-95

Was this page helpful?