Showing 161 - 180 results of 204 for search '"Kaifeng"', query time: 0.05s Refine Results
  1. 161
  2. 162
  3. 163
  4. 164
  5. 165
  6. 166
  7. 167
  8. 168
  9. 169
  10. 170
  11. 171
  12. 172
  13. 173
  14. 174
  15. 175
  16. 176
  17. 177
  18. 178

    Evaluation and source identification of water pollution by Huaibin Wei, Haojie Qiu, Jing Liu, Wen Li, Chenchen Zhao, Hanfei Xu

    Published 2025-01-01
    “…Heavily polluted areas are mainly located in Zhengzhou, Luoyang, and Kaifeng. Key indicators affecting water quality in these regions are chemical oxygen demand (CODMn), dissolved oxygen (DO), ammonia nitrogen (NH3-N), and total phosphorus (TP), with urban sewage and industrial wastewater identified as the main causes of deterioration. …”
    Get full text
    Article
  19. 179
  20. 180