Main inorganic ions and electric conductivity of polluted urban streams [Электронный ресурс] / E. A. Bondarenko [et al.]. — Электрон. текстовые дан. (1 файл : 1,08 Мб) // Инженерно-строительный журнал: специализированный научный журнал / Санкт-Петербургский политехнический университет Петра Великого, Инженерно-строительный институт. – 2016. – Загл. с титул. экрана. — Электронная версия печатной публикации. — Свободный доступ из сети Интернет (чтение, печать, копирование). — Текстовый файл. — Adobe Acrobat Reader 7.0. — <URL:http://elib.spbstu.ru/dl/2/j17-270.pdf>. — <URL:http://doi.org/10.5862/MCE.68.4>.
|
Period
|
Read
|
Print
|
Copy
|
Open
|
Total
|
|
Year 2017
|
Quarter 2
|
June
|
11
|
0
|
15
|
0
|
26
|
|
Quarter 3
|
July
|
5
|
0
|
8
|
0
|
13
|
|
August
|
5
|
0
|
2
|
0
|
7
|
|
September
|
7
|
0
|
3
|
0
|
10
|
|
Quarter 4
|
October
|
4
|
0
|
3
|
0
|
7
|
|
November
|
10
|
0
|
2
|
0
|
12
|
|
December
|
6
|
0
|
6
|
0
|
12
|
|
Year 2018
|
Quarter 1
|
January
|
6
|
0
|
0
|
0
|
6
|
|
February
|
3
|
0
|
0
|
0
|
3
|
|
March
|
5
|
0
|
3
|
0
|
8
|
|
Quarter 2
|
April
|
5
|
0
|
1
|
0
|
6
|
|
May
|
2
|
0
|
3
|
0
|
5
|
|
June
|
2
|
0
|
1
|
0
|
3
|
|
Quarter 3
|
July
|
3
|
0
|
4
|
0
|
7
|
|
August
|
6
|
0
|
6
|
0
|
12
|
|
September
|
0
|
0
|
2
|
0
|
2
|
|
Quarter 4
|
October
|
1
|
0
|
5
|
0
|
6
|
|
November
|
2
|
0
|
2
|
0
|
4
|
|
December
|
3
|
0
|
2
|
0
|
5
|
|
Year 2019
|
Quarter 1
|
January
|
1
|
0
|
2
|
0
|
3
|
|
February
|
3
|
0
|
4
|
0
|
7
|
|
March
|
2
|
0
|
5
|
0
|
7
|
|
Quarter 2
|
April
|
2
|
0
|
1
|
0
|
3
|
|
May
|
5
|
0
|
0
|
0
|
5
|
|
June
|
3
|
0
|
4
|
0
|
7
|
|
Quarter 3
|
July
|
2
|
0
|
4
|
0
|
6
|
|
August
|
2
|
0
|
5
|
0
|
7
|
|
September
|
4
|
0
|
4
|
0
|
8
|
|
Quarter 4
|
October
|
1
|
0
|
2
|
0
|
3
|
|
November
|
1
|
0
|
0
|
0
|
1
|
|
December
|
0
|
0
|
1
|
0
|
1
|
|
Year 2020
|
Quarter 1
|
January
|
1
|
0
|
0
|
0
|
1
|
|
February
|
3
|
0
|
3
|
0
|
6
|
|
March
|
6
|
0
|
5
|
0
|
11
|
|
Quarter 2
|
April
|
8
|
0
|
0
|
0
|
8
|
|
May
|
4
|
0
|
0
|
0
|
4
|
|
June
|
5
|
0
|
0
|
0
|
5
|
|
Quarter 3
|
July
|
4
|
0
|
0
|
0
|
4
|
|
August
|
1
|
0
|
0
|
0
|
1
|
|
September
|
4
|
0
|
0
|
0
|
4
|
|
Quarter 4
|
October
|
6
|
0
|
3
|
0
|
9
|
|
November
|
2
|
0
|
4
|
0
|
6
|
|
December
|
2
|
0
|
5
|
0
|
7
|
|
Year 2021
|
Quarter 1
|
January
|
8
|
0
|
9
|
0
|
17
|
|
February
|
2
|
0
|
3
|
0
|
5
|
|
March
|
0
|
0
|
2
|
0
|
2
|
|
Quarter 2
|
April
|
2
|
0
|
3
|
0
|
5
|
|
May
|
3
|
0
|
2
|
0
|
5
|
|
June
|
8
|
0
|
5
|
0
|
13
|
|
Quarter 3
|
July
|
7
|
0
|
6
|
0
|
13
|
|
August
|
3
|
0
|
1
|
0
|
4
|
|
September
|
0
|
0
|
3
|
0
|
3
|
|
Quarter 4
|
October
|
3
|
0
|
4
|
0
|
7
|
|
November
|
0
|
0
|
6
|
0
|
6
|
|
December
|
2
|
0
|
2
|
0
|
4
|
|
Year 2022
|
Quarter 1
|
January
|
1
|
0
|
3
|
0
|
4
|
|
February
|
1
|
0
|
5
|
0
|
6
|
|
March
|
4
|
0
|
1
|
0
|
5
|
|
Quarter 2
|
April
|
3
|
0
|
5
|
0
|
8
|
|
May
|
0
|
0
|
0
|
0
|
0
|
|
June
|
2
|
0
|
6
|
0
|
8
|
|
Quarter 3
|
July
|
3
|
0
|
2
|
0
|
5
|
|
August
|
5
|
0
|
2
|
0
|
7
|
|
September
|
1
|
0
|
0
|
0
|
1
|
|
Quarter 4
|
October
|
4
|
0
|
2
|
0
|
6
|
|
November
|
3
|
0
|
0
|
0
|
3
|
|
December
|
14
|
0
|
6
|
0
|
20
|
|
Year 2023
|
Quarter 1
|
January
|
1
|
0
|
1
|
0
|
2
|
|
February
|
3
|
0
|
2
|
0
|
5
|
|
March
|
2
|
0
|
4
|
0
|
6
|
|
Quarter 2
|
April
|
1
|
0
|
1
|
0
|
2
|
|
May
|
2
|
0
|
6
|
0
|
8
|
|
June
|
1
|
0
|
0
|
0
|
1
|
|
Quarter 3
|
July
|
1
|
0
|
0
|
0
|
1
|
|
August
|
2
|
0
|
1
|
0
|
3
|
|
September
|
3
|
0
|
3
|
0
|
6
|
|
Quarter 4
|
October
|
3
|
0
|
3
|
0
|
6
|
|
November
|
0
|
0
|
5
|
0
|
5
|
|
December
|
0
|
0
|
1
|
0
|
1
|
|
Year 2024
|
Quarter 1
|
January
|
0
|
0
|
6
|
0
|
6
|
|
February
|
5
|
0
|
1
|
0
|
6
|
|
March
|
0
|
0
|
6
|
0
|
6
|
|
Quarter 2
|
April
|
2
|
0
|
6
|
0
|
8
|
|
Total
|
263
|
0
|
244
|
0
|
507
|
