Figure 1.
![Comparison of chloride content [mg/dm3] on selected streets in cleaning sweepings collected after summer and winter, including standard deviation](https://sciendo-parsed.s3.eu-central-1.amazonaws.com/647070a983f1392090d69885/j_acee-2022-007_fig_001.jpg?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential=AKIA6AP2G7AKOUXAVR44%2F20251206%2Feu-central-1%2Fs3%2Faws4_request&X-Amz-Date=20251206T095813Z&X-Amz-Expires=3600&X-Amz-Signature=8bbb17d07407b2c24f04056474cec8920d2b3755566dbb450c6b71b33443a79c&X-Amz-SignedHeaders=host&x-amz-checksum-mode=ENABLED&x-id=GetObject)
Comparison of selected parameters of environmental pollution tested on streets in Krakow during street cleaning processes with parameters determined on other streets as a result of similar activities
| Location | Length of surveyed section [m]. | Chloride content of street cleaning wastewater [mg/dm3] | ||
|---|---|---|---|---|
| Average | Value min. | Value of max. | ||
| Access street | 700 (One-way, 2-day left/right experiment), | 500 | 965 | 34,1 |
| 118 | 210 | 25 | ||
| Alley Krasińskiego | 1020 (two-way, three-day experiment full width) | 394 | 762 | 25.6 |
| Street Porucznika Halszki | 770 (two-way, three-day experiment full width) | 385 | 749 | 25 |
| Street Bulwarowa | 550 (two-way, three-day experiment full width) | 34 | 52,9 | 15 |
Chloride content of individual street and sidewalk cleaning samples after summer and winter
| Location | Chloride content in street cleaning wastewater [mg/dm3] after summer | Chloride content in street cleaning wastewater [mg/dm3] after winter | ||||
|---|---|---|---|---|---|---|
| Average | Value min. | Value of max. | Average | Value min. | Value of max. | |
| Streets 1 | 35.42 | 29.3 | 41.4 | 362.75 | 321.6 | 399.8 |
| Streets 2 (sewage wells) | 59.8255 | 45.6 | 71.9 | 1467.93 | 1201.4 | 1732.8 |
| Streets 3 (washing the streets) | 43.886 | 38.3 | 49.3 | 421.73 | 436.3 | 468.5 |
| Pedestrian walkway | 36.42 | 25.8 | 46.2 | 53.13 | 45.9 | 59.2 |