| 摘要 |
[Objectives] This study was conducted to investigate water pollution in the Huanghou Underground River Basin. [Methods] Five representative water quality indicators, ammonia nitrogen (NH₄⁺-N), nitrate nitrogen (NO₃⁻-N), permanganate index (CODₘₙ), total phosphorus (TP), and nitrite nitrogen (NO₂⁻-N), were selected. The single-factor pollution index (Pᵢ), Nemerow pollution index (PN), and water quality index (WQI) were calculated to quantitatively assess pollution characteristics and evaluate water quality in the basin. [Results] The overall water quality in the Huanghou Underground River Basin fell within the "slightly polluted to good" range, with pollution primarily concentrated in the upstream areas. The downstream water quality was generally better, as most pollutants from the upstream were diluted or degraded during migration, resulting in little impact on the downstream areas. [Conclusions] This study provides a theoretical basis for understanding the pollution characteristics and evaluation of water quality in the Huanghou Underground River Basin. |
