Geologist working for the environmental protection agency monitor surface waters at sites across the country to determine the effects of acid rain on aquatic ecosystems. What type No would the geologist most likely track?
The geologist would most likely track the pH levels of the surface waters.
The geologist would most likely track the concentration of hydrogen ions (H+) in the surface waters. The concentration of hydrogen ions is an indicator of acidity, which can be affected by acid rain.
In order to determine the effects of acid rain on aquatic ecosystems, the geologist would most likely track the levels of several chemical compounds, particularly nitrogen dioxide (NO2) and nitric oxide (NO). These compounds are emitted into the atmosphere during the combustion of fossil fuels and industrial processes, and they contribute to the formation of acid rain.
To track the levels of nitrogen dioxide and nitric oxide, geologists typically use various monitoring techniques. One common method is to place air quality monitoring stations near the targeted surface waters to collect samples of the surrounding air. These stations can collect data on the concentration of pollutants, including nitrogen compounds, in the atmosphere. The collected air samples are then analyzed in a laboratory using specialized instruments, such as gas analyzers, to determine the specific concentrations of nitrogen dioxide and nitric oxide.
The geologist may also analyze the chemical composition of the surface waters themselves. By taking water samples from different locations and testing them in a lab, they can measure the levels of nitrogen-based compounds, including nitrates (NO3-) and nitrites (NO2-), which can indicate the presence of acid rain. This data provides insights into how acid rain affects the delicate balance of aquatic ecosystems, including water chemistry, plant and animal life, and overall water quality.
By tracking and analyzing these nitrogen compounds both in the air and in surface waters, geologists can assess the extent of acid rain's impact on aquatic ecosystems and contribute valuable information to the environmental protection efforts led by the agency.