[1] Aarts R, Somnath B[D]. Elektor Electronics Worldwide, 2, 90(2019).

[2] Cai Z, Chen X, Liu Y et al[D]. Science China Earth Sciences, 11, 1622(2018).

[3] Balis D, Koukouli M E, Zyrichidou I et al[D]. Atmospheric Research, 224, 42(2019).

[4] Ding X, Fan Y, Hang J et al[D]. Building and Environment, 180, 107048(2020).

[5] Tianan Y, Wenling L, Ziping X[D]. International Journal of Environmental Research & Public Health, 15, 1471(2018).

[6] Tian X, Xie P, Xu J et al[D]. Environ. Sci., 71, 207(2018).

[7] Dix B, Koenig T, Volkamer R[D]. Atmos. Meas. Tech., 9, 5655(2016).

[8] Bais A, Drosoglou T, Zyrichidou I et al[D]. Atmos. Chem. Phys., 17, 5829(2017).

[9] Beirle S, Lampel J, Wang Y et al[D]. Atmos. Chem. Phys., 17, 5007(2017).

[10] Liu C, Wang S, Xing C et al[D]. Atmos. Meas. Tech., 12, 3289(2019).

[11] Liu C, Xing C et al[D]. Sci. Total Environ., 715, 136258(2020).

[12] Jin J, Lin W, Ma J et al[D]. Atmos. Environ., 133, 12(2016).

[13] Lampel J, Wang Y, Xie P et al[D]. Atmos. Chem. Phys., 17, 2189(2017).

[15] Tian X, Xie P, Xu J et al[D]. Atmos. Chem. Phys., 19, 3375(2019).

[16] Butt J, Khokhar M, Naveed S et al[D]. Atmosphere, 7, 68(2016).

[17] Liu C, Muhammad F K, Zeeshan J et al[D]. Remote Sens., 11, 1524(2019).

[18] Liu C, Wang S, Xing C et al[D]. Atmos. Chem. Phys., 17, 14275(2017).