ABSTRACT Air quality is affected by the interaction between emission sources and urban planning factors such as land use. Limited empirical studies have been conducted to determine the influence of land use and population growth on air quality in South Africa. Thus, the purpose of this research is to examine the relationship between land use, population growth and air pollution focusing on black carbon (BC), carbon monoxide (CO) and sulphur dioxide (SO2) pollution in South Africa. Three urban areas; Tshwane, Rustenburg and Emalahleni in South Africa were chosen for this study. We found that the increase in population growth in these areas led directly to the expansion of built-up areas. As a consequence, these led to the increase in BC, CO and SO2 concentrations thus degrading air quality in these areas. Rural-urban migration could be the main reason for the rapid increase in population growth, land expansion and the deterioration in air quality in these areas. This study has shown that there is a close link between, land use, population growth and air quality.

中文翻译：

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人口增长和土地利用对空气质量的影响。南非茨瓦尼 (Tshwane)、勒斯滕堡 (Rustenburg) 和埃马拉莱尼 (Emalahleni) 的案例研究

摘要 空气质量受排放源和城市规划因素（如土地利用）之间相互作用的影响。已经进行了有限的实证研究来确定土地使用和人口增长对南非空气质量的影响。因此，本研究的目的是研究土地利用、人口增长和空气污染之间的关系，重点是南非的黑碳 (BC)、一氧化碳 (CO) 和二氧化硫 (SO2) 污染。三个市区；本研究选择了南非的 Tshwane、Rustenburg 和 Emalahleni。我们发现这些地区人口增长的增加直接导致了建成区的扩大。结果，这些导致 BC、CO 和 SO2 浓度增加，从而降低了这些地区的空气质量。城乡人口迁移可能是这些地区人口快速增长、土地扩张和空气质量恶化的主要原因。这项研究表明，土地利用、人口增长和空气质量之间存在密切联系。