Livingstone D J
J Hyg (Lond). 1976 Oct;77(2):263-6. doi: 10.1017/s0022172400024694.
A bacteriological survey on the distribution and occurrence of coliforms and pathogenic indicators of pollution within the surf-zone and near-shore waters along a section of the Natal coast before the use of submarine outfalls with reported previously. In that report more than half the beaches in the region were found to be of Class IV or III quality. After the submarine outfalls became operational, ten further sampling runs were made. A considerable improvement in the sea-water quality was apparent, most of the beaches being regarded to Class II or I, notably in the bathing areas.
此前曾报道过在纳塔尔海岸一段区域使用海底排污口之前，对冲浪区和近岸水域大肠菌群及污染致病指标的分布与出现情况进行的细菌学调查。在那份报告中，该地区超过一半的海滩被判定为四类或三类水质。海底排污口投入使用后，又进行了十次采样。海水质量有了显著改善，大多数海滩被视为二类或一类水质，尤其是在游泳区域。
