A METEOROLOGICAL ANALYSIS OF CARBON DIOXIDE CONCENTRATIONS MEASURED AT A RURAL LOCATION

Concentrations of carbon dioxide (CO2) measured at a rural location are presented. The principal contributing source during any specified time period is identified from the nature of the continuous recording trace of concentration. Natural sources dominated the trace pattern during the warmer months. Combustion sources could be identified only in the absence of significant natural sources. It is suggested that emissions of CO2 from natural sources may exert a substantial influence on concentrations of CO2 measured at an urban location during the nocturnal hours of the summer months. CO2 appears to have utility as tracer of urban pollution during the non-growing season. © 1967.