Chemical Characteristics of Precipitation in a Typical Urban Site of the Hinterland in Three Gorges Reservoir, China

Table 1

VWM concentrations of major inorganic ions in the precipitation in Wanzhou and some selected areas (unit: μeq L⁻¹).

Areas	Periods	pH	F^−	Cl^−				Ca^2+	Na^+	K^+	Mg^2+		References
Wazhou	2014-2015	5.0	3.2	15.1	35.1	156.9	89.6	62.1	24.4	20.1	9.9	4.5	This study
Zigui	2009	4.9	N	11.8	63.2	177.2	90.6	142.6	11.7	7.5	18.3	2.8	[14]
Wanzhou	2001–2009	5.	8.4	25.3	43.7	258.3	126.6	114.4	27.0	12.7	29.2	5.9	[15]
Okinawa, Japan	2003–2005	4.9	N	351	7.0	53.9	9.5	25.2	308	9.4	63.9	7.7	[16]
New Jersey, USA	2006-2007	4.6	1.1	10.7	14.3	19.0	24.4	3.0	10.9	1.3	1.6	1.3	[17]
Delhi, India	2011–2013	6.4	10.7	42.9	50.5	91.6	23.7	198.6	26.8	5.3	69.2	1.8	[4]
Beijing	2001–2005	6.0	15.4	34.9	106.0	314.0	236.0	209.0	22.5	13.8	48.4	3.0	[6]
Guiyang	2008-2009	4.2	14.5	20.7	7.3	265.6	112.8	182.9	13.9	9.6	10.5	36.4	[5]
Guangzhou	2005-2006	4.5	12.0	21.0	51.8	202	66.2	131.0	18.0	9.0	9.0	3.9	[18]
Lijiang	1989–2006	6.1	N	11.6	3.6	32.6	11.4	50.2	2.5	N	7.7	9.1	[19]
Shenzhen	1986–2006	5.0	4.5	37.9	22.1	74.3	35.2	77.7	40.3	7.2	9.7	3.4	[20]
Chengdu	2008	5.1	6.2	8.9	156.2	212.8	150.5	196.6	1.4	6.6	16.2	1.4	[21]

rithmetic mean value; ot determined.