Table 1.

The number of observed/available daily PM_2.5 concentrations per month monitored by BAM-1022, Addis Ababa, Ethiopia, 2017–2020.

Site	Year	Month												Total
		Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
TASH	2017				30	31	30	31	31	30	31	24	29	267
	2018	28	28	31	30	31	25	31	31	26	24	30	31	346
	2019	29	28	6	1	31	30	31	31	30	31	30	31	309
	2020	31	28	31										90
	Total	88	84	68	61	93	85	93	93	86	86	84	91	1012
US Embassy	2017				30	31	30	31	26	29	31	30	29	267
	2018	28	24	22	30	27	30	31	31	28	31	30	31	343
	2019	31	28	31	28	31	23		23	23	31	30	13	292
	2020	30	28	30										88
	Total	89	80	83	88	89	83	62	80	80	93	90	73	990
School	2017				30	31	12	1		19	30	22	27	172
	2018	16	9	5	28	31	11	29	5	12	24	4		174
	Total	16	9	5	58	62	23	30	5	31	54	26	27	346

TASH: “Tikur Anbessa Hospital” with BAM 1022; Central-location BAM-1020 in the premises of US Embassy; School-International School hosting BAM-1020.