Table 3.

Average air pollution index in jakarta from 2018 to 2020.

Year	Month	Monthly Average of Air Pollution Index
		PM10	% change from the previous year	SO2	% change from the previous year	CO	% change from the previous year	O3	% change from the previous year	NO2	% change from the previous year
2018	January	27.77		28.75		13.86		38.06		6.17
	February	38.08		19.81		25.21		48.83		7.62
	March	48.40		20.97		20.58		74.46		8.69
	April	50.35		20.76		19.56		62.55		8.95
	May	62.97		19.43		17.32		77.39		8.88
	June	56.22		17.49		15.16		80.12		7.67
2019	January	41.22	48.4%	15.35	−46.6%	17.43	25.7%	57.65	51.5%	10.06	63.1%
	February	50.12	31.6%	17.60	−11.2%	22.23	−11.8%	59.94	22.7%	11.13	46.0%
	March	45.55	−5.9%	15.51	−26.1%	19.10	−7.2%	65.92	−11.5%	11.34	30.4%
	April	53.06	5.4%	13.64	−34.3%	22.01	12.5%	79.94	27.8%	11.07	23.7%
	May	59.01	−6.3%	14.41	−25.8%	19.16	10.7%	70.14	−9.4%	10.63	19.7%
	June	61.80	9.9%	15.44	−11.7%	16.77	10.6%	82.29	2.7%	10.71	39.5%
2020	January	46.39	12.5%	18.86	22.9%	22.95	31.7%	50.34	−12.7%	8.12	−19.2%
	February	44.66	−10.9%	14.95	−15.1%	24.65	10.9%	54.23	−9.5%	8.38	−24.7%
	March	49.28	8.2%	13.97	−9.9%	20.76	8.7%	73.29	11.2%	8.26	−27.1%
	April	51.29	−3.3%	13.84	1.5%	13.64	−38.0%	67.26	−15.9%	7.24	−34.6%
	May	49.95	−15.4%	15.40	6.9%	12.44	−35.1%	58.80	−16.2%	7.20	−32.3%
	June	60.30	−2.4%	16.20	4.9%	13.55	−19.2%	64.10	−22.1%	8.74	−18.4%