Table 2.

PM and elemental constituents concentration levels (Mean ± S.D., μg/m³) by location.

	Total		Al-Nuzlah		Al-Alfiyya		Al-Rehab
	PM2.5	PM10	PM2.5	PM10	PM2.5	PM10	PM2.5	PM10
PM	29.07 (18.68)	85.12 (30.30)	29.10 (14.11)	73.51 (10.13)	24.51 (11.77)	99.42 (43.94)	18.04 (3.96)	68.95 (20.48)
Al	0.89 (1.35)	3.42 (2.05)	0.28 (0.066)	2.06 (0.46)	0.58 (0.36)	4.79 (2.50)	0.28 (0.12)	2.41 (0.86)
Ca	0.63 (0.77)	4.18 (1.33)	0.31 (0.037)	3.55 (0.49)	0.36 (0.18)	4.48 (2.35)	0.28 (0.18)	3.48 (1.32)
Cr	0.0028 (0.0031)	0.0093 (0.0058)	0.0018 (0.00077)	0.0066 (0.0011)	0.0021 (0.00087)	0.013 (0.0073)	0.0014 (0.00099)	0.0059 (0.0023)
Cu	0.0061 (0.0041)	0.017 (0.0076)	0.0024 (0.0023)	0.012 (0.0048)	0.013 (0.0097)	0.022 (0.015)	0.0018 (0.0014)	0.013 (0.0038)
Fe	0.72 (1.18)	3.32 (2.24)	0.17 (0.027)	1.84 (0.38)	0.37 (0.21)	4.25 (2.43)	0.23 (0.15)	2.29 (0.86)
K	0.21 (0.17)	0.72 (0.27)	0.15 (0.033)	0.52 (0.083)	0.013 (0.063)	0.86 (0.51)	0.11 (0.030)	0.56 (0.19)
Mg	0.33 (0.43)	1.44 (0.52)	0.20 (0.079)	1.17 (0.16)	0.23 (0.15)	1.93 (0.87)	0.11 (0.057)	1.21 (0.54)
Mn	0.022 (0.033)	0.10 (0.063)	0.0054 (0.0018)	0.053 (0.012)	0.012 (0.0057)	0.12 (0.062)	0.009 (0.0048)	0.069 (0.028)
Ni	0.0071 (0.0028)	0.011 (0.0039)	0.0071 (0.0023)	0.099 (0.0027)	0.0064 (0.0033)	0.012 (0.0067)	0.0042 (0.00091)	0.0073 (0.0025)
Pb	0.13 (0.14)	0.16 (0.17)	0.037 (0.049)	0.039 (0.044)	0.49 (0.44)	0.47 (0.47)	0.086 (0.14)	0.11 (0.15)
S	3.48 (0.75)	3.39 (0.51)	4.04 (0.45)	3.76 (0.47)	3.87 (2.34)	3.47 (2.17)	2.51 (0.35)	2.69 (0.15)
Si	2.47 (3.99)	11.19 (6.70)	0.72 (0.23)	7.08 (1.36)	1.44 (0.89)	15.29 (8.10)	0.68 (0.43)	7.69 (2.80)
Sr	0.0049 (0.0061)	0.026 (0.0085)	0.0021 (0.00066)	0.022 (0.0034)	0.003 (0.0019)	0.029 (0.015)	0.0018 (0.0020)	0.023 (0.015)
Ti	0.070 (0.13)	0.32 (0.25)	0.011 (0.0027)	0.15 (0.028)	0.032 (0.021)	0.42 (0.26)	0.017 (0.014)	0.21 (0.08)
V	0.025 (0.010)	0.032 (0.012)	0.029 (0.0098)	0.33 (0.0096)	0.023 (0.012)	0.031 (0.015)	0.015 (0.0038)	0.021 (0.06)
Zn	0.038 (0.023)	0.073 (0.044)	0.017 (0.0069)	0.039 (0.012)	0.056 (0.064)	0.13 (0.17)	0.019 (0.0088)	0.049 (0.011)
	Pitrumin		Al-Rughama		University		Al-Muhammadiyah
	PM2.5	PM10	PM2.5	PM10	PM2.5	PM10	PM2.5	PM10
PM	31.14 (5.85)	107.13 (28.75)	73.16 (65.08)	141.27 (124.20)	29.91 (11.67)	85.67 (33.09)	15.78 (3.05)	47.01 (6.52)
Al	0.41 (0.22)	3.51 (1.07)	3.93 (4.07)	7.17 (6.07)	0.63 (1.02)	3.07 (1.77)	0.15 (0.43)	0.91 (0.41)
Ca	0.53 (0.17)	6.11 (1.42)	2.36 (2.76)	4.95 (2.94)	0.39 (0.30)	4.77 (2.18)	0.19 (0.15)	1.96 (0.61)
Cr	0.0015 (0.0010)	0.0089 (0.0031)	0.0097 (0.010)	0.021 (0.020)	0.0019 (0.0021)	0.0083 (0.0053)	0.00092 (0.00058)	0.0022 (0.00081)
Cu	0.0054 (0.0053)	0.029 (0.0096)	0.0098 (0.0057)	0.016 (0.011)	0.0077 (0.011)	0.019 (0.016)	0.0029 (0.0037)	0.0048 (0.0022)
Fe	0.36 (0.15)	3.59 (1.16)	3.37 (3.94)	7.71 (7.73)	0.39 (0.64)	2.81 (1.59)	0.12 (0.093)	0.75 (0.22)
K	0.21 (0.091)	0.91 (0.29)	0.59 (0.62)	1.14 (0.93)	0.16 (0.13)	0.69 (0.31)	0.12 (0.024)	0.35 (0.075)
Mg	0.19 (0.098)	1.55 (0.47)	1.29 (1.21)	2.21 (1.51)	0.25 (0.33)	1.41 (0.60)	0.058 (0.025)	1.55 (0.16)
Mn	0.014 (0.0073)	0.11 (0.035)	0.097 (0.11)	0.23 (0.21)	0.015 (0.021)	0.095 (0.052)	0.0051 (0.0028)	0.11 (0.0079)
Ni	0.012 (0.0048)	0.018 (0.0044)	0.0097 (0.0058)	0.13 (0.0088)	0.0058 (0.0022)	0.011 (0.0044)	0.0043 (0.00096)	0.018 (0.0021)
Pb	0.031 (0.020)	0.041 (0.022)	0.17 (0.27)	0.021 (0.34)	0.21 (0.42)	0.27 (0.52)	0.0066 (0.0067)	0.0093 (0.0063)
S	4.51 (0.97)	4.06 (0.67)	3.65 (1.32)	2.82 (1.25)	3.11 (1.19)	3.71 (0.99)	2.63 (0.47)	3.19 (0.73)
Si	1.16 (0.62)	12.18 (3.96)	11.49 (12.57)	23.35 (20.07)	1.47 (2.46)	10.07 (5.42)	0.34 (0.21)	2.64 (1.04)
Sr	0.0044 (0.0017)	0.036 (0.021)	0.019 (0.022)	0.036 (0.025)	0.0029 (0.0027)	0.027 (0.014)	0.0021 (0.00097)	0.012 (0.003)
Ti	0.025 (0.014)	0.31 (0.095)	0.36 (0.43)	0.83 (0.90)	0.034 (0.069)	0.25 (0.17)	0.012 (0.0094)	0.07 (0.03)
V	0.045 (0.0099)	0.055 (0.0072)	0.028 (0.015)	0.031 (0.014)	0.019 (0.0069)	0.029 (0.0099)	0.016 (0.0037)	0.021 (0.0078)
Zn	0.073 (0.13)	0.13 (0.17)	0.043 (0.027)	0.061 (0.036)	0.044 (0.0.76)	0.079 (0.13)	0.0099 (0.0044)	0.022 (0.005)