Figure 7. Statistical graph of daily carbon monoxide (CO) concentration with NAAQS Limit at 3.130ppm represented as 1.5ppm on the graph

From

Air Quality Assessment in Abattoir Facility, Obinze, Owerri West, Imo State, Nigeria

Ebe T. E., Udensi J. U., Ojiaku A., Ejiogu C. C., Nwachukwu J I., Egbuawa O. I., Osondu I.M., Alozie C. P., Osondu I. M., Iroegbu D. C.

American Journal of Environmental Protection. 2023, 11(2), 49-55 doi:10.12691/env-11-2-3