. 2022 May 6;8(5):e09388. doi: 10.1016/j.heliyon.2022.e09388

Table 2.

A frequency distribution of sulfur dioxide (SO₂) concentration.

No	Sampling Point	SO₂ Concentration			Average SO₂ Concentration (mg/m³)
No	Sampling Point	Time	Temperature and Humidity	SO₂ Concentration (mg/m³)	Average SO₂ Concentration (mg/m³)
1.	Medco's Matering Gas	In the Morning (09.15 am)	T = 28.4 °C H = 38.2%	0.0927	0.0956
1.	Medco's Matering Gas	In the Afternoon (01.07 pm)	T = 32.5 °C H = 64%	0.0986	0.0956
2.	ST 1.0 Control room	In the Morning (09.28 am)	T = 28.5 °C H = 65.9%	0.0518	0.0524
2.	ST 1.0 Control room	In the Afternoon (01.11 pm)	T = 32.5 °C H = 64%	0.0530	0.0524
3.	Cooling Tower	In the Morning (10.12 am)	T = 33 °C H = 77%	0.0804	0.0862
3.	Cooling Tower	In the Afternoon (02.00 pm)	T = 34.9 °C H = 69% ^oC	0.0919	0.0862
4.	Water Treatment Plant (WTP)	In the Morning (10.19 am)	T = 33.1 H = 77%	0.1172	0.1094
4.	Water Treatment Plant (WTP)	In the Afternoon (02.00 pm)	T = 34.9 °C H = 69%	0.1015	0.1094