Effect of ambient concentration of Carbon monoxide (CO) on the in-vehicle concentration of Carbon monoxide in Chennai, India

Journal article

J. Aswin Giri, S. Karthikeyan, M. Raj
Environmental Engineering Research, 2020

Cite

APA Click to copy
Giri, J. A., Karthikeyan, S., & Raj, M. (2020). Effect of ambient concentration of Carbon monoxide (CO) on the in-vehicle concentration of Carbon monoxide in Chennai, India. Environmental Engineering Research.

Chicago/Turabian Click to copy
Giri, J. Aswin, S. Karthikeyan, and M. Raj. “Effect of Ambient Concentration of Carbon Monoxide (CO) on the in-Vehicle Concentration of Carbon Monoxide in Chennai, India.” Environmental Engineering Research (2020).

MLA Click to copy
Giri, J. Aswin, et al. “Effect of Ambient Concentration of Carbon Monoxide (CO) on the in-Vehicle Concentration of Carbon Monoxide in Chennai, India.” Environmental Engineering Research, 2020.

BibTeX Click to copy

@article{j2020a,
  title = {Effect of ambient concentration of Carbon monoxide (CO) on the in-vehicle concentration of Carbon monoxide in Chennai, India},
  year = {2020},
  journal = {Environmental Engineering Research},
  author = {Giri, J. Aswin and Karthikeyan, S. and Raj, M.}
}

Abstract

In this study, ambient concentration of Carbon monoxide (CO) was monitored at two locations, a signalized traffic intersection and at one kilometer away from the intersection in Chennai. The maximum CO concentration was found to be 38.82 mg/m 3 and 1.15 mg/m 3 at signalized traffic intersection and one kilometer away from the intersection, respectively. The 1 h average in-vehicle carbon monoxide concentration in cars during Air Conditioner (A/C)-ON recirculation mode, A/C-ON fresh air mode and windows open mode are 2.4 mg/m 3 , 4 mg/m 3 and 5.7 mg/m 3 , respectively. The dilution rates of CO in these modes were found to be 0.14 mg/m 3 /min, 0.51 mg/m 3 /min and 1.71 mg/m 3 /min, respectively. The Root Mean Square Error (RMSE) for A/C recirculation, A/C fresh air, windows open modes in car and windows open in bus were 2.06, 3.27, 0.79 and 1.82, respectively. For short trips, A/C-on recirculation mode was found to be suitable and continuous use of A/C in longer trips led to accumulation of CO. It is advisable to switch to either A/C on Fresh air mode or windows open mode during longer trips to prevent accumulation of in-vehicle CO.