Spatial distribution and heavy metal content of some bryophytes and lichens in relation to air pollution in Nigeria's Guinea Savanna

Bako, Sunday; Afolabi, Samson; Funtua, I. I.

doi:10.1504/ijep.2008.019393

Cited by 8 publications

(9 citation statements)

References 19 publications

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“…Diversity of bryophyte responses to industrial pollutants (Table 1) strongly supports the opinion (LeBlanc and Rao 1974;Gignac 1987;Bako and Afolabi 2008) that the composition of bryophyte communities can be used for evaluation and monitoring of environmental quality. Although some of the detected patterns are industry-specific, ranking of bryophyte species according to their sensitivity to pollution appears independent of the type of the polluter.…”

Section: Practical Implicationssupporting

confidence: 74%

“…The morphological and physiological constitution of mosses makes them excellent tools to monitor the deposition of airborne pollutants (e.g., Hynninen 1986;Onianwa 2001;Zechmeister et al 2007;González-Miqueo et al 2010). Some bryophytes are very sensitive to industrial pollutants, while others demonstrate pronounced resistance to pollution (Rao 1982;Jules and Shaw 1994); thus, the presence/ absence of certain species or the composition of bryophyte communities can be used for delimiting pollution zones (LeBlanc and Rao 1974;Gignac 1987;Bako and Afolabi 2008).…”

Section: Introductionmentioning

confidence: 99%

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Impacts of Industrial Polluters on Bryophytes: a Meta-analysis of Observational Studies

Zvereva

Kozlov

2010

Water Air Soil Pollut

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Identifying the factors responsible for the diversity of responses of biota to industrial pollution is crucial for predicting the fates of polluted ecosystems. A meta-analysis based on 49 field studies conducted around 47 point polluters demonstrated that the individual (growth and reproduction) and community (abundance and species richness) characteristics of bryophytes in polluted habitats are reduced to about a half of the values observed in unpolluted sites. Non-ferrous smelters cause a stronger reduction in species richness and larger changes in species composition than other types of polluters. The magnitudes of the effects of pollution on the abundances of individual bryophyte species are not linked with their taxonomic position, life form or Ellenberg indicator values for light, moisture and nitrogen. The variation in species' responses to pollution is mostly explained by differences in their reproductive characteristics; bryophyte species that possess special forms of vegetative reproduction and those that produce abundant sporophytes are more successful in polluted habitats. Ranking of bryophyte species according to their sensitivity to pollution is independent of the type of the polluter. Changes in bryophyte cover follow changes in tree cover, but not changes in the cover of the vascular field layer in the same pollution gradients. Pollution impacts cause stronger adverse effects on bryophytes in warmer climates.

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Section: Practical Implicationssupporting

confidence: 74%

Section: Introductionmentioning

confidence: 99%

Impacts of Industrial Polluters on Bryophytes: a Meta-analysis of Observational Studies

Zvereva

Kozlov

2010

Water Air Soil Pollut

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“…Measurements of intermediate thickness samples using the emission-transmission method can be interesting for environmental ( Markowicz et al, 1996 ), geological ( Funtua, 1999 ), biological ( Funtua, 1999 ; Bamford et al, 2004 ; Bako et al, 2008 ), and drug ( Mahawatte et al, 2006 ) samples. In plant science, this method was applied to quantify the elements in healthy and fumagine infected orange and lemon leaves.…”

Section: Resultsmentioning

confidence: 99%

Laboratory Microprobe X-Ray Fluorescence in Plant Science: Emerging Applications and Case Studies

et al. 2018

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In vivo and micro chemical analytical methods have the potential to improve our understanding of plant metabolism and development. Benchtop microprobe X-ray fluorescence spectroscopy (μ-XRF) presents a huge potential for facing this challenge. Excitation beams of 30 μm and 1 mm in diameter were employed to address questions in seed technology, phytopathology, plant physiology, and bioremediation. Different elements were analyzed in several situations of agronomic interest: (i) Examples of μ-XRF yielding quantitative maps that reveal the spatial distribution of zinc in common beans (Phaseolus vulgaris) primed seeds. (ii) Chemical images daily recorded at a soybean leaf (Glycine max) infected by anthracnose showed that phosphorus, sulfur, and calcium trended to concentrate in the disease spot. (iii) In vivo measurements at the stem of P. vulgaris showed that under root exposure, manganese is absorbed and transported nearly 10-fold faster than iron. (iv) Quantitative maps showed that the lead distribution in a leaf of Eucalyptus hybrid was not homogenous, this element accumulated mainly in the leaf border and midrib, the lead hotspots reached up to 13,400 mg lead kg-1 fresh tissue weight. These case studies highlight the ability of μ-XRF in performing qualitative and quantitative elemental analysis of fresh and living plant tissues. Thus, it can probe dynamic biological phenomena non-destructively and in real time.

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“…Funaria Hygrometrica Moss Onianwa et al, 1986;Kakulu, 1993;Fatoba and Oduekun, 2004;Bako et al, 2008;Ekpo et al, 2012). Nevertheless, the use of Funaria hygrometrica moss as bio-indicator of trace metals pollution in the atmosphere within Akwa Ibom State and Nigeria especially in the oil producing areas is inadequate.…”

Section: Monitoring Of Atmospheric Trace Metal Pollution In An Oil Prmentioning

confidence: 99%

Monitoring of Atmospheric Trace Metal Pollution in An Oil Producing Area of Akwa Ibom State, Nigeria Using Funaria Hygrometrica Moss

Ebong¹

2015

IJSRES

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Abstract. Funaria hygrometrica mosses were obtained from walls of old buildings and old fences at five (5) different communities namely: Mkpanak, Ukpenekang, Iwuochang, Inua Eyet Ikot and Iwuokpom within Ibeno, Akwa Ibom State, Nigeria. Funaria hygrometrica mosses were also collected from old fences in less busy areas of Nsit Ubium in the same State and used a Control. These samples and Control were analyzed for Lead, cadmium, iron, copper and nickel concentrations using atomic absorption spectrophotometer. Pollution status of these metals and the different locations studied was evaluated using contamination factor, enrichment factor and degree of contamination. Results obtained indicated the following mean concentrations (mg/kg): Pb (10.47±0.63); Cd (0.65±0.04); Fe (579.59±65.64); Cu (8.42±0.79) and Ni (4.57±0.42). While concentrations (mg/kg) of Pb, Cd, Fe, Cu and Ni obtained in the Control were 1.76; 0.14; 206.17; 1.05 and 0.85 respectively. Lead, cadmium, copper and nickel exhibited moderate contamination while iron showed slight contamination. Degree of contamination revealed that, all locations assessed were within considerable degree of contamination with Iwuokpom and Inua Eyet Ikot showing the highest and lowest magnitude of contamination respectively. Enrichment factor analysis showed that, iron and cadmium were mostly from the natural source while lead, copper and nickel were mainly from air deposition. The study also indicated that, mean concentrations of trace metals obtained in samples from Ibeno were higher than their corresponding levels in Control. A comparison of results obtained with recommended standards showed that, all the metals assessed were higher than their limits.

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Spatial distribution and heavy metal content of some bryophytes and lichens in relation to air pollution in Nigeria's Guinea Savanna

Cited by 8 publications

References 19 publications

Impacts of Industrial Polluters on Bryophytes: a Meta-analysis of Observational Studies

Impacts of Industrial Polluters on Bryophytes: a Meta-analysis of Observational Studies

Laboratory Microprobe X-Ray Fluorescence in Plant Science: Emerging Applications and Case Studies

Monitoring of Atmospheric Trace Metal Pollution in An Oil Producing Area of Akwa Ibom State, Nigeria Using Funaria Hygrometrica Moss

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