Determination of Air Pollutant Concentrations in Plant Species in Relation to Pollution Sources

Abstract

Air quality has been a major health issue in urban areas in recent decades. Human activities release a large number of pollutants into the atmosphere which has a direct impact on plant health and leads to ecosystem degradation. The objective of this study is to contribute to a better evaluation of the impact of the air quality of the city of Togo on biological resources. The determination of pollutants was done on samples of plant species with a strong link with the source of pollution. The determination of Sulfur dioxide (SO 2 ) was done by the ripper method. The determination of carbon and estimation of CO 2 and CO by the colorimetric method. The determination of nitrogen was done by the Kjeldhal method. The results showed that at the industrial level the amount of CO 2 in Alternanthera repens is high with a value of 53.3911 mg/ml. On the other hand, the quantity of CO in Senna occidentalis is 44.3619 mg/ml. In Pithecellobium dulce, the quantity of SO 2 and NO 2 are evaluated respectively to 0.1588 mg/ml and 0.3696 mg/ml. Regarding to the dumps, the quantity of CO 2 in Newbouldia laevis is very high with a value of 65.8508 mg/ml. On the other hand the amount of CO in Senna occidentalis is 51.6106 mg/ml. The quantity of SO 2 in Newbouldia laevis is 0.2101 mg/ml and NO 2 in Ocimum canum is 0.2744 mg/ml. At the level of roads, the quantities of CO 2 and CO in Eragrostis tenella are very high with values respectively equal to 74.4092 mg/ml and 62.2654 mg/ml. On the other hand, the amount of NO 2 in Amaranthus sp is 0.2304 mg/ml and that of SO 2 in Eragrostis Tenella is 0.1691 mg/ml. The use of a plant bioindicator sensitive to pollutants, allowed concluding that the air of the city of Lome is polluted.

The Environment Deterioration Impact on the Granite Rock Art Relief of Seti I in Aswan, Egypt

“…Chemical weathering due to the pollution of the granite rock art relief area with pollution gases and water, decomposed the mineral components of the granite, especially for native elements [21] [22]. Heavy traffic on roads, landfills and industries is the source of atmospheric pollution worldwide [23]. Chemical decomposition always occurs for rock formations close to gases and water, which they are often the surface layers [24], as in the relief, subject of the study.…”

Short Communication: The effects of SO2 and NO2 fumigation on the chlorophyll of Parmotrema perlatum from Mt. Lawu, Cemoro Sewu, Indonesia

“…This causes water deficiency (dehydration) in the thallus as well as other active physiological disorders, such as impaired respiratory processes (Araújo et al 2015). The critical level of NO2 in a lichen is 30 μg m -3 (Atator et al 2021).…”

“…These gases are released into the atmosphere and accumulate in vegetation in urban areas. There is a positional correlation between NO2 and SO2 levels in the atmosphere (Atator et al 2021). In Europe, atmospheric disturbances caused by increases in pollutant pollutants NO2 and SO2 are reported to be highly critical (Jayalal et al 2017).…”

Air Pollution: A Review of Its Impacts on Health and Ecosystems, and Analytical Techniques for Their Measurement and Modeling

“…Biodiversity Loss: Air pollution poses a significant threat to biodiversity, with potential consequences for the stability and functioning of ecosystems (Cotrozzi et al, 2018;Stevens et al, 2020;Thimmegowda et al, 2020). High levels of air pollutants can harm plants, including crop species, by damaging their leaves, reducing photosynthesis, and interfering with nutrient uptake (Atator et al, 2021). Accordingly, this can lead to reduced crop yields, decreased food availability, and disordered ecological interactions.…”