Analysis of atmospheric precipitation, irregular data

Date	RAIN	vodivost	pH	Na⁺	K⁺	NH₄⁺	Mg²⁺	Ca²⁺	Mn	Al	Fe	F⁻	Cl⁻	NO₃⁻	SO₄²⁻
	mm	µS/cm	-	ug/l	ug/l	ug/l	ug/l	ug/l	ug/l	ug/l	ug/l	ug/l	ug/l	ug/l	ug/l
	VOL	EC meter	pH meter	IC	IC	IC	IC	IC	AAS	AAS	AAS	IC	IC	IC	IC
2021-01-07	26.9	17.8	4.91	215	42	463	22	63	2.0	22	21	0	407	1 921	320
2021-01-22	144.6	4.5	5.29	4	5	64	3	10	0.4	6	5	0	38	357	65
2021-02-04	17.9	10.0	5.67	129	47	475	26	765	6.9	48	47	0	151	3 070	710
2021-02-19	22.4	14.4	6.06	102	57	1 013	44	721	15.5	92	76	0	190	3 077	1 003
2021-03-11	43.3	14.3	6.36	358	48	1 110	76	304	4.1	32	25	0	658	1 819	700
2021-04-01	40.3	14.2	5.93	168	37	778	53	248	5.1	48	48	0	395	1 594	746
2021-04-21	41.5	12.5	6.22	56	35	1 104	20	452	3.9	42	37	0	105	2 351	1 092
2021-05-04	112.7	4.7	5.69	70	60	138	5	160	1.4	5	3	0	50	329	109
2021-05-14	33.6	6.1	5.52	59	26	399	10	69	1.2	5	7	10	110	1 003	273
2021-05-21	68.6	8.0	5.68	100	120	493	14	148	3.5	4	4	0	98	753	297
2021-06-11	71.0	8.0	5.83	10	29	355	7	471	4.4	21	11	0	40	155	90
2021-06-23	51.6	5.0	5.83	30	2	333	8	240	0.8	8	7	0	50	416	310
2021-06-26	64.4	5.5	6.08	46	26	392	14	273	1.8	17	10	0	80	567	290
2021-07-09	34.1	6.0	5.60	88	36	317	55	171	4.2	9	6	0	127	820	420
2021-07-24	110.8	3.8	5.59	40	10	192	9	100	0.9	3	2	0	40	495	188
2021-08-06	48.3	4.4	5.75	60	17	311	13	80	1.4	4	6	0	70	621	205
2021-08-19	67.2	4.8	5.45	41	26	290	10	55	0.7	2	5	0	80	691	218
2021-09-03	11.4	10.7	4.93	130	47	309	49	422	4.6	11	10	10	80	1 939	805
2021-09-29	37.4	13.8	5.13	36	13	70	17	104	1.3	8	11	0	110	487	257
2021-10-16	4.0	13.6	4.90	255	68	154	65	305	8.8	41	22	0	390	1 005	1 142
2021-10-26	32.0	5.1	5.49	27	21	240	12	94	2.0	6	7	0	68	847	224
2021-11-12	34.7	6.8	5.15	37	34	230	32	120	2.1	24	25	0	85	1 225	280
2021-12-02	33.8	7.6	5.35	22	10	50	9	104	1.9	40	42	0	90	342	100
2021-12-24	83.2	4.4	5.39	80	14	131	5	35	0.6	6	6	0	170	398	160