Keeling Began Measuring Tropospheric Carbon Dioxide Concentrations at Mauna Loa

Keeling began measuring tropospheric carbon dioxide concentrations at Mauna Loa observatory in Hawaii in 1958. This is a remote location away from urban and industrial areas. If Keeling had instead established his CO₂ monitoring station near a large coal-fired power plant then ______________.

A) his measurements would be influenced by the amount of soot produced by the power plant
B) the heat given off by the power plant would give him higher than expected readings
C) his measurements of CO₂ levels would likely be much lower than a place like Mauna Loa
D) his measurements of CO₂ levels would likely be much higher than in a place like Mauna Loa
E) his measurements of CO₂ levels would likely be about the same as a place like Mauna Loa