Table 2.

The physicochemical parameters of water in Qom Province, Iran, Spring–Summer 2008–2009, ^*no larva was collected, a values in a row which are significantly different in habitats where include larvae (n=9) and b in all samples (n=10) (at P=0.05)

Physicochemical parameters	Locality										Mean±SD (Larval habitats, n=9)	Mean±SD (Total, n=10)
	Agholak	Ahmadabad	Dastgerd	Dastjerd	Emamzadeh Esmail	Ghahan	Ghal-e-cham	Qomrood	Qom City*	Rahjerd
Temperature (°C)	20.4	17.5	21.8	17.5	22.0	20.4	22.7	22.7	15.3	20.4	20.60±1.98	20.07±2.51
Acidity (pH)	7.5	7.3	7.7	7.3	7.7	7.5	7.3	7.1	7.7	7.0	7.37±0.24	7.41±0.25
Turbidity (NTU)	1.0	0.1	0.3	0.1	1.9	1.0	0.2	6.0a	0.5	0.2	1.20±1.89	1.13±1.80
Electrical conductivity (μS/cm)	2070	1827	1005	1827	815	2070	2240	4240a	8820b	392	1831.77±1110.74	2530.60±2445.44
Total dissolved solids (ppm)	1030	914	502	914	407	1030	1120	2120a	4380b	197	914.88±555.05	1261.40±1214.31
Alkalinity (mg/l)	300	540	230	540	250	300	530	410	300	210	367.77±138.90	361.00±132.70
Total hardness (mg/l)	799.6	428.4	238.0	428.4	266.5	799.6	534.7	1294.7a	875.8	180.8	552.30±357.58	584.65±352.31
Calcium (mg/l)	323.6	649.5	30.4	649.5	30.4	323.6	620.8	220.8	83.7	26.6	319.46±267.23	295.89±262.74
Chloride (mg/l)	154.9	364.8	229.9	364.8	129.9	154.9	389.8	1479.5a	329.8	24.9	365.93±435.91	362.32±411.14
Fluoride (mg/l)	0.96	1.05	0.28	1.05	0.41	0.96	0.95	0.75	1.23	0.17	0.731±0.349	0.781±0.365
Nitrite (mg/l)	0.003	0.008	0.001	0.008	0.006	0.003	0.004	0.004	0.004	0.012a	0.0054±0.0033	0.0053±0.0032
Nitrate (mg/l)	0.0	1.0	2.2	1.0	1.2	0.0	1.8	9.8a	0.4	0.0	1.88±3.07	1.74±2.93
Phosphate (mg/l)	0.43	0.39	1.53	0.39	2.74a	0.43	0.48	0.48	0.23	0.12	0.776±0.834	0.722±0.805
Sulfate (mg/l)	784	400	134	400	184	784	832	832	1445b	37	487.44±325.67	583.20±431.24