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=ASIA6AP2G7AKFZY3VAUN%2F20260201%2Feu-central-1%2Fs3%2Faws4_request&X-Amz-Date=20260201T140249Z&X-Amz-Expires=3600&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEAQaDGV1LWNlbnRyYWwtMSJIMEYCIQCGEyXfGg%2FhpFqUKQga7AEp63waSISTZDplhvsD6%2FExVwIhANRFyT%2BmTxBepcncKm8C%2B%2F03ZpltgrAurcVjYW70oRVNKsUFCM3%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEQAhoMOTYzMTM0Mjg5OTQwIgyCzo2CUMvfyjelsTUqmQWft9VnA9x6ApaDafl4Rg%2BV2KUS21aVE6wDmghBb%2BY6zdF17EKD2i7DKOIGwaSQcuHxdQ1rYuTgo9c494AJZkrj0c7rcs5jarFcPkVNgNQ7Xnc%2BpYoepDNJ4R%2BLeWj5FEYd%2FSJix1nt3W4tLjkzrIXE0BpeTdTJftmtkU08Rimy9ieP0B6WtwepLA9TooFhg0Qw6y3htwgG6sDSkS7Hci%2BDmINc8TCgu%2BAiV5UgffX3KxWiJbNIEjvYmNWn3%2BTKS4qNHsdLkLQjUuZCN%2F6bv4TqCNeuRPXZG6emtuf5bQlCQliAY2yufl%2B2xMnRgaNoDiAoqlbdO5xEbUn%2BJZOioAcy5hCNGnn4NOWKf1o2HabsK4Tv5kGQ%2FzHOWmPHA0%2Fx3WYydCZm6vQbr9AIkP48fliFX19PWMmnOs62UhGe7Zccrsb8j%2FcUdhkKg73Fp2Kl1sAKVhWC7aFtJ%2Bu5abds%2FWiCx6IKaAPfsL7NdvNtTUD%2BeVlwgzb6vitW6oJaEVRpBg6o1FQCuG1w4L5WQOpSUtrTDgDhPwpEMYCfxTwE47Yz3ZXUFyTrY24KflHJghl3KFGFldmJ2KOKA3NCdkweIOef2atyNnZSTGUr82Fli50Cuo0NjL3zIgXbI49XWB6cJCOFRpOiIm8JHQzxgorp5TQa8DJsV4iOC%2BP7EvLn6knE9XjIycUrE%2FUOehel9quvVux7zn3%2B8qdHbqY1gjb9k5xMwwCMGpVZej7wpYMK8tOOBEWaILdCUHGBlXIooMT6%2FYlcNwD%2BNBJcnvkZY%2Bae4aPzU2G4JABJ42WEumh%2FT%2F0FHiOVDLeDRGnrC18YkmonZp1%2FG3JNu2qxJ5npgApQkvX1y0cLeC%2BSBdVdpuMKTTrNP2mfcm%2BLh0r9YDDu8%2FzLBjqwARjnfYhceBQSHf%2BMW4khRQKtUzNIB8Ffu6nP4LeHkKTFurgNv%2BscaEPVFfRjdmNZ34hxcqLL57rWb8TJujgJgsD%2BP9EO3P%2BuQYj2mG20DMzHNP9bx8yZ3k3ALbjL8lotFAP3RL068lweGUGFlgF4V2aMLYdSkW8OX4KZuBKD92Ys22fXRkD3AwbP9IZ9cIhCYXvy%2FsWroKVFGQNwl8sH2%2Fkwjq8Zs7k%2FikIxlwqsE9uo&X-Amz-Signature=3283585b6fb2d17e8cca7afbe372e6f09dcd71c7aa0d9b2b141ace15196ccc3f&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 |