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Nanuta block belongs to 40 km towards south from Saharanpur district, 546 km from state capital lucknow, towards east is bounded by rampur maniharan, north thanabhawan.Hindi is the local language, people also speaks urdu and Punjabi, climate of nanuta block warm and temperate.Lock down effect the quality of ground water, waste water, surface water and untreated sewage water discharged daily into the river, only some percentage of water is treated by people, some industries closed from twenty two march two thousand twenty to September thirteen two thousand twenty due to lock down, during this time ground water quality and quantity was also effected , change the quantity of cation and anion before and after lock down, lock down increased the water demand.The water demand different for different places, water demand effected by the population.In developing country large population is not know about the treatment of waste water.In india seventy percentage of waste water directy discharged into the nearby river, in this paper we study qualitative analysis of ground water before and after lock down, impact on total dissovled solid, total hardness, electrical conductivity and pH due to lock down, in India first lockdown was announced on march twenty fifth till april fourteen two thousand twenty and second lockdown extended nineteen days till may third twenty thousand twenty then extended seventeen may twenty thousand twenty.Ground water of nanuta block also effected after lock down, mainly small child, below five year child was effected by drinking water problem, many people does not maintain the water quality, three river are near the nanuta block banganga, solani and kali.

Due to increasing population, industrial activities and agricultural water demand is also increase, water is the one of the natural recourse of the earth. It is essential for survival, there are no substitute for water, river are the most dynamic of the earth ecosystem their major function is transport of water, release of domestic sewage and industrial waste increase the concentration of sulphate and chloride in ground water [6]. Soil act as natural filtration and sediments makes the ground water free from organic impurities[5], A number of studies regarding pollution  of river Hindon & its tributaries have been carried out by different workers9.Last twenty year atmosphere, biosphere and hydrosphere was more polluted.[11]

The organic waste discharge from the industries were change the ground water quality[7] Sugar mill effluent decrease the water demand for irrigation8.The dissolved oxygen levels and biological oxygen demand increase in Ganga river two months of lock down[13]. Temperature, colour and turbidity are physical parameter of water analysis [14], if heavy metal enter the food chain they end the life of the human[16], water for drinking should be colourless, odourless, tasteless and free from turbidity. The ground water are changing due to human activities3.Surface water is more polluted then groun water so demand of ground water increase. Fresh water and neutral pH is important for drinking purpose of all living being[12]. Pure water is basic right of humans and fresh water is limited in many area of the world [15]. It is compulsory to maintain the water quality, mainly surface water was not drinkable without treatment[17], in post monsoon ground water flow south, southwest and southeast and in premonsoon southeast, southwest and south i.e. in opposite direction[18]. Pollution due to different activites change the aquatic life totally [19],

Over uses of ground water in the country decrease the water quality [20].

The study was conducted in the department of chemistry, saharanpur.Total 58 ground water sample were collected from 16 villages of nanuta block before and after lock down.Three sample from each village, before post monsoon 2017 and after post monsoon 2021, standered solution were prepared in double distilled water .Village were chora, jadauda panda, jhabiran ,kuwakhera, maheshpur, tikraul, bhojpur kanshipur, khudana, mora, pandokheri, chanderpur, mahespur, ratanheri, fetahpur and sadhauli. Samples were collected in glass reagent bottles and stored at very low temp to retain their original form.The samples were brought to the laboratory to determine the parameter.The reagents used for the analysis were AR grade and double distilled water were used for preparation of solutions.The pH and E.C.were measured by using Eutech-Cybernetics pH meter and E.C. scan meter.Total hardness, calcium, Magnisium were measured by EDTA titration. Sodium and potassium were analysed using flame photometer. Sulphate were determined napthalometrically using ELICO-52 Nepthalometer.Bicarbonate titration with 0.01N sulphuric acid, fluride were measured by ELICO-52 spectrophotometer, compared with Indian standereds (IS) and WHO.

Sampling was done in different reagent bottle from different villages of Nanuta block

The chemicals dissolved in ground water were analysed quantitavily for major cation   and anions before and after lock down.The overall range of nanuta block before lock down  T.D.S .range was 120-216mg/l, T.H. range 102-375mg/l, E.C.range130-652mg/l, pH range 6.3-7.5, and after lock down 123-223mg/l, T.H. range 109-378mg/l, E.C.range134-655mg/l, pH range 6.1-7.6.before lock down of Ca⁺⁺ was 13-52mg/l, Mg⁺⁺ was 12-62mg/l, Na⁺ was 19-46mg/l and K⁺ was1.2-2.5mg/l, the range of cations were , Mg⁺⁺˃Ca⁺⁺˃, Na⁺ ˃ K⁺ .Anions range NO₃^--  was 0.03-7.5mg/l  , F^-  was 0.15-0.65mg/l   , SO₄^—was 11-455mg/l  , HCO₃^{-- .}mg/l   ^.0.20-0.28  , the range of anions were SO₄^{- -} ˃ NO₃^-- ˃  F^-˃  HCO₃^{-- -}.  And after lock down Ca⁺⁺ was 15-58mg/l, Mg⁺⁺ was 14-61mg/l, Na⁺ was 21-44mg/l and K⁺ was1.4-2.5mg/l, the range of cations were , Mg⁺⁺˃Ca⁺⁺˃, Na⁺ ˃ K⁺ .anions range NO₃^--  was 0.12-7.6mg/l  , F^-  was 0.2-0.8mg/l   , SO₄^—was 9-53mg/l   , HCO₃^{-- .}mg/l   ^.0.20-0.28  ^,, the range of anions were SO₄^{-  -}˃ NO₃^--  ˃  F^-˃  HCO₃^-- .  Before lock down T.D.S . value of                Jadauda panda was highest and Pandokheri was lowest, T.H. value chora village was highest and Sadhauli was lowest and E.C. value Pandokheri was highest and mahespur was lowest, and after lock down T.D.S . value of Kuwakhera was highest and mora was lowest The ground water of different  villages were less polluted.

Table No.-1

Physico – chemical parameter of  nanuta block before lock down

S.	Name of village	T.D.S. mg/l	T.H.	E.C.	pH
No.			mg/l	mg/l
1.	Chora	187	375	445	6.9
2.	Jadauda panda	216	301	546	7.1
3.	Jhabiran	191	294	492	7.4
4.	kuwakhera	214	276	403	7.3
5.	Maheshpur	192	359	130	7.5
6.	Tikraul	134	106	556	6.7
7.	Bhojpur	141	141	439	6.6
8.	Kanshipur,	154	123	590	7.4
9.	Khudana	163	296	631	7.2
10.	Mora	122	116	440	7.3
11.	Pandokheri	120	118	652	7.5
12.	Chanderpur	194	120	132	6.8
13.	Mahespur	163	107	234	6.4
14.	Sadhauli	172	102	136	6.3
15.	Ratanheri	174	124	142	7.2
16.	Fetapur	193	354	430	7.1
	min.ave.v.	120	102	130	6.3
	max.ave.v.	216	375	652	7.5

Table No. - 2

Physico–chemical parameter of  nanuta block after lock down

S.	Name of village	T.D.S. mg/l	T.H.	E.C.	pH
No.			mg/l	mg/l
1.	Chora	189	378	447	6.8
2.	Jadauda panda	219	305	548	7.2
3.	Jhabiran	198	296	495	7.3
4.	kuwakhera	223	279	407	7.4
5.	Maheshpur	196	364	134	7.6
6.	Tikraul	135	109	558	6.7
7.	Bhojpur	146	145	442	6.6
8.	Kanshipur,	159	125	598	7.4
9.	Khudana	168	300	636	7.2
10.	Mora	123	118	447	7.3
11.	Pandokheri	127	120	655	7.5
12.	Chanderpur	197	124	135	6.8
13.	Mahespur	163	107	234	6.4
14.	Sadhauli	172	112	136	6.3
15.	Ratanheri	176	119	144	6.1
16.	Fatahpur	156	169	134	6.1
	min.ave.v.	123	109	134	6.1
	max.ave.v.	223	378	655	7.6

 

Physico – chemical parameter of  nanuta block after lock down

Table No. - 3

 Physico – chemical parameters of different villages of  nanuta block  before lock down

(cations and anions)

 

Table No. - 4

Physico – chemical parameters of different villages of  nanuta block  after lock down(cations and anions)

Table no-5

pH value before and after lock down of different villages of nanuta block

		before	after
	Name of village	pH	pH
1.	Chora	6.9	6.8
2.	Jadauda panda	7.1	7.2
3.	Jhabiran	7.4	7.3
4.	Kuwakhera	7.3	7.4
5.	Maheshpur	7.5	7.6
6.	Tikraul	6.7	6.7
7.	Bhojpur	6.6	6.6
8.	Kanshipur,	7.4	7.4
9.	Khudana	7.2	7.2
10.	Mora	7.3	7.3
11.	Pandokheri	7.5	7.5
12.	Chanderpur	6.8	6.8
13.	Mahespur	6.4	6.4
14.	Sadhauli	6.3	6.3
15.	Ratanheri	7.2	6.1
16.	Fetahpur	7.1	7.1

 

min.ave.v.	6.3	6.1
max.ave.v.	7.5	7.6

Table  No.-5

Different parameter according to Acceptable limit(IS) ,Permissible limit(IS) and Permissible limit(WHO)

S.No.	parameter	Acceptable limit(IS)	Permissible limit(IS)	Permissible limit(WHO)
1.	pH	6.5-8.5	6.5-8.5	6.5-8.0
2.	T.D.S.	500mg/l	2000mg/l	1000mg/l
3.	Ca	75mg/l	200mg/l	75mg/l
4.	Cl	250mg/l	1000mg/l	250mg/l
5.	Mg	30mg/l	100mg/l	50mg/l
6.	So4--	200mg/l	400mg/l	150mg/l
7.	T.H.	200mg/l	600mg/l	500mg/l
8.	T.A.	200mg/l	600mg/l	-
9.	HCO3-	300mg/l	-	-
10.	Na	200mg/l(BIS)	-	200mg/l
11.	D.O.	4-6mg/l(USPH)	-	-

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