Investigation of BTX Concentrations and Effects of Meteorological Parameters in the Steelpoort Area of Limpopo Province, South Africa
Abstract
:1. Introduction
2. Materials and Methods
2.1. Study Area
2.2. Sampling Method
2.3. Analyses of BTX by Gas Chromatography
2.4. Quality Assurance and Quality Control
2.5. Statistical Analyses of Data
3. Results and Discussion
3.1. Benzene, Toluene and Xylene Concentrations
3.2. Interspecies Ratios among BTX
3.3. Multiple Linear Regression Data
3.4. Study Limitations
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Month | T/B | T/X | X/B |
---|---|---|---|
January | 2.6 | 2.3 | 1.2 |
February | 3.1 | 2.3 | 1.9 |
March | 1.6 | 3.2 | 0.52 |
April | 1.4 | 2.5 | 0.56 |
May | 1.4 | 1.2 | 1.1 |
June | 3.2 | 4.9 | 0.66 |
July | 4.6 | 4.2 | 1.1 |
August | 3.6 | 3.1 | 1.2 |
September | 2.1 | 1.6 | 1.3 |
October | 1.3 | 1.1 | 1.2 |
November | 2.0 | 1.8 | 1.1 |
December | 2.5 | 2.2 | 1.2 |
Model | B | T | X | ||||
---|---|---|---|---|---|---|---|
V | β | p-Value | β | p-Value | β | p-Value | |
1 | C | 0.0844 | 0.003 | 1.543 | 0.368 | 18.606 | 0.552 |
Temp | −0.003 | 0.814 | −0.223 | 0.047 | −1.331 | 0.465 | |
WS | −0.019 | 0.894 | 1.900 | 0.148 | 15.593 | 0.496 | |
RH | −0.006 | 0.244 | 0.041 | 0.317 | 0.749 | 0.329 | |
SR | 0.001 | 0.485 | −0.001 | 0.907 | −0.178 | 0.217 | |
R | 0.642 | 0.718 | 0.619 | ||||
r2 | 0.413 | 0.516 | 0.383 | ||||
2 | C | 0.826 | <0.001 | 1.561 | 0.327 | 32.799 | 0.167 |
Temp | −0.004 | 0.600 | −0.224 | 0.032 | −0.419 | 0.720 | |
WS | (-) | 1.838 | 0.099 | (-) | |||
RH | −0.005 | 0.062 | 0.039 | 0.224 | 0.328 | 0.430 | |
SR | 0.001 | 0.445 | (-) | −0.137 | 0.266 | ||
R | 0.641 | 0.718 | 0.581 | ||||
r2 | 0.411 | 0.515 | 0.338 | ||||
3 | C | 0.816 | <0.001 | 3.156 | 0.007 | 31.744 | 0.153 |
Temp | (-) | −0.132 | 0.036 | (-) | |||
WS | (-) | 0.832 | 0.231 | (-) | |||
RH | −0.005 | 0.0051 | (-) | 0.329 | 0.403 | ||
SR | 0.000 | 0.555 | (-) | −0.165 | 0.070 | ||
R | 0.624 | 0.640 | 0.572 | ||||
r2 | 0.389 | 0.410 | 0.327 | ||||
4 | C | 0.857 | <0.001 | 3.368 | 0.004 | 38.830 | 0.061 |
Temp | (-) | −0.088 | 0.064 | (-) | |||
RH | −0.005 | 0.038 | (-) | (-) | |||
SR | (-) | (-) | −0.125 | 0.084 | |||
R | 0.603 | 0.549 | 0.519 | ||||
r2 | 0.364 | 0.302 | 0.269 |
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Maswanganyi, C.; Tshilongo, J.; Mkhohlakali, A.; Martin, L. Investigation of BTX Concentrations and Effects of Meteorological Parameters in the Steelpoort Area of Limpopo Province, South Africa. Atmosphere 2024, 15, 552. https://doi.org/10.3390/atmos15050552
Maswanganyi C, Tshilongo J, Mkhohlakali A, Martin L. Investigation of BTX Concentrations and Effects of Meteorological Parameters in the Steelpoort Area of Limpopo Province, South Africa. Atmosphere. 2024; 15(5):552. https://doi.org/10.3390/atmos15050552
Chicago/Turabian StyleMaswanganyi, Collet, James Tshilongo, Andile Mkhohlakali, and Lynwill Martin. 2024. "Investigation of BTX Concentrations and Effects of Meteorological Parameters in the Steelpoort Area of Limpopo Province, South Africa" Atmosphere 15, no. 5: 552. https://doi.org/10.3390/atmos15050552