{"title":"尼日利亚埃邦伊州采石对空气质量的环境影响","authors":"Odera Chukwumaijem Okafor, Chima Njoku, Anselem Nwabuaku Akwuebu","doi":"10.1186/s12302-023-00793-6","DOIUrl":null,"url":null,"abstract":"<div><h3>Background</h3><p>The insatiable demand for rock supplies has enticed numerous building and construction enterprises to participate in stone quarrying. However, this has had an environmental impact on air quality. This paper examines the environmental impact of quarrying on air quality in Ebonyi State, Nigeria. To achieve the main aim of the study, an objective was set to detect air pollutants at the quarry sites. A total of 220 air samples were measured from six points around the quarry locations and recorded in situ for analysis. The samples were measured three times a day (morning, afternoon, and evening) for three days. Gas monitors were used to monitor air pollutants. The generated data were subjected to completely random design (CRD) sampling techniques. The separation of means and tests was performed using Fisher’s Least Significant Difference (FLSD) at a significance probability level of 5%.</p><h3>Results</h3><p>Based on statistical analysis, the findings detected significantly higher concentration levels of particulate matter, nitrogen dioxide, hydrogen sulphide, carbon monoxide, sulphur dioxide, chlorine, volatile organic compounds, ammonia, and hydrogen cyanide in the quarry areas than the value detected in the control area. The findings also confirmed higher noise levels in the locations. It was also observed that the concentration levels of the parameters differed from point to point and at different times of the day. 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引用次数: 0
摘要
对岩石供应的永不满足的需求吸引了众多建筑企业参与采石。然而，这对空气质量产生了环境影响。本文考察了采石对尼日利亚埃邦伊州空气质量的环境影响。为了达到这项研究的主要目的，我们设定了一个目标，即在采石场检测空气污染物。从采石场周围的6个点总共测量了220个空气样本，并在现场记录以供分析。样品每天测量三次(上午、下午和晚上)，持续三天。气体监测仪被用来监测空气污染物。生成的数据采用完全随机设计(CRD)抽样技术。采用Fisher 's Least Significant Difference (FLSD)在显著性概率水平为5%的情况下进行均值和检验的分离。结果通过统计分析，发现采石场区域的颗粒物、二氧化氮、硫化氢、一氧化碳、二氧化硫、氯、挥发性有机物、氨和氰化氢的浓度水平明显高于控制区。研究结果还证实，这些地方的噪音水平更高。还观察到，参数的浓度水平在一天中的不同时间和点之间有所不同。这实际上意味着研究地点的空气污染率很高。综上所述，我们强烈建议:(i)如果情况不及时解决，它将导致严重的环境灾难或危害，因为没有人选择他或她呼吸的空气;(ii)在有自由空气流通的采石场现场安装空气污染管制设备，以减少气体(污染物)排放;及(iii)应检查受采石场活动影响的季节影响、气象参数和时间。
Environmental impact of quarrying on air quality in Ebonyi state, Nigeria
Background
The insatiable demand for rock supplies has enticed numerous building and construction enterprises to participate in stone quarrying. However, this has had an environmental impact on air quality. This paper examines the environmental impact of quarrying on air quality in Ebonyi State, Nigeria. To achieve the main aim of the study, an objective was set to detect air pollutants at the quarry sites. A total of 220 air samples were measured from six points around the quarry locations and recorded in situ for analysis. The samples were measured three times a day (morning, afternoon, and evening) for three days. Gas monitors were used to monitor air pollutants. The generated data were subjected to completely random design (CRD) sampling techniques. The separation of means and tests was performed using Fisher’s Least Significant Difference (FLSD) at a significance probability level of 5%.
Results
Based on statistical analysis, the findings detected significantly higher concentration levels of particulate matter, nitrogen dioxide, hydrogen sulphide, carbon monoxide, sulphur dioxide, chlorine, volatile organic compounds, ammonia, and hydrogen cyanide in the quarry areas than the value detected in the control area. The findings also confirmed higher noise levels in the locations. It was also observed that the concentration levels of the parameters differed from point to point and at different times of the day. This really means the occurrence of a high rate of air pollution in the study locations.
Conclusions
Based on the above findings, it is highly recommended that, (i) if situation is not timely addressed, it will lead to a severe environmental disaster or hazard, as nobody selects the air he or she breathes; (ii) air pollution control equipment be installed in-situ at quarry sites where free air flow is available in order to reduce gaseous (pollutant) emissions, and (iii) the seasonal effects, meteorological parameters and time that were influenced by the activities of quarry should be put in check.
期刊介绍：
ESEU is an international journal, focusing primarily on Europe, with a broad scope covering all aspects of environmental sciences, including the main topic regulation.
ESEU will discuss the entanglement between environmental sciences and regulation because, in recent years, there have been misunderstandings and even disagreement between stakeholders in these two areas. ESEU will help to improve the comprehension of issues between environmental sciences and regulation.
ESEU will be an outlet from the German-speaking (DACH) countries to Europe and an inlet from Europe to the DACH countries regarding environmental sciences and regulation.
Moreover, ESEU will facilitate the exchange of ideas and interaction between Europe and the DACH countries regarding environmental regulatory issues.
Although Europe is at the center of ESEU, the journal will not exclude the rest of the world, because regulatory issues pertaining to environmental sciences can be fully seen only from a global perspective.
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