Sher Muhammad, Saadullah Khan Leghari, Palwasha Amanullah,
Shamim Gul, Shazia Saeed, Alia Ahmad,
Allah Bakhsh Gulshan, Fasial
Hussain Leghari, and Basira Sher, from the different institute of Pakistan.
wrote a Research article about, Roadside Leaves as Pollution Sensors: Weather
and Particulates in Quetta. Entitled, Influence of Weather, Time and Pollution
Level on Amount of Particulate Matter Placed on the Leaves of Nerium oleander
and Ligustrum lucidum Grown along the Roadsides of Quetta City. This research
paper published by the International Journal of Biosciences | IJB. an open
access scholarly research journal on Biosciences. under the affiliation of
the International Network For Natural Sciences| INNSpub. an open
access multidisciplinary research journal publisher.
Abstract
The PM accumulation
process by plants is quite energetic, and even after one day, fluctuations in
PM load on foliage can be significant. Rain and, to a lesser extent, wind
influenced PM deposition on leaves, with the latter being more
species-specific. This research explored the temporal and spatial variations in
the concentrations of Particulate Matter (PM) collected on two evergreen plant
species (Nerium oleander and Ligustrum lucidum) leaves commonly
grown along with the roadside Quetta city Balochistan, Pakistan. The impact of
wind and rain on the quantity of PM collected on vegetation was investigated.
The PM (g⋅m−2)
concentrations held by N. oleander and L. lucidum leaves
considerably varied among the places (from 7.70 – 10.7 & 6.24 – 9.53) with
significant variation and over time (from 5.94 – 18.0 & 5.32 – 16.5). The
highest PM concentrations on the foliage of N. oleander and L. lucidum growing
at the most contaminated site, Saryab road, were determined. The largest
and lowest levels of accumulation PM followed in August and January,
respectively, throughout the year. Rainfall events eliminated a significant
percentage of the accumulated PM on leaves (30%, 42% and 55% of PM from leaves
of N. oleander and 40, 62 and 95% from L. lucidum leaves)
and strong winds (20%. 35% and 47% of PM N. oleander and 25%, 45% and
71% from L. lucidum), It’s also possible that heavier precipitation or a
higher maximum wind speed will help to eliminate more PM from the leaves.
Rainfall primarily cleared coarse and large particles, but small fragments
clung to the foliage more tenaciously. These findings suggested that when
assessing total PM accumulation on leaves, the influence of regional weather
circumstances (such as strong wind or rainfall), altered seasons, and levels of
pollution should be judged.
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Introduction
Unlike many other
pollutants, particulate matter (PM) cannot be defined by the fluctuations in
mass concentrations of a particular chemical over time and space. PM movement
and its environmental and health impacts are influenced by a number of
important elements. The fine fraction has gotten the most attention since it
has an impact on health, visibility, and radiative forcing. Long-distance
migration of fine particulate matter can have global, regional, and local
consequences. Air pollution is becoming a greater hazard to the environment,
animals, plants, and human health in metropolitan areas (EEA, 2015; Leghari,
2019). PM, which is made up of liquid and solid organic and inorganic
particles, is the most dangerous pollutants among all taken from the inhalation
route (Bell et al., 2011; Kim et al., 2015). There are both human-made and
natural sources of it (Juda-Rezler et al., 2011). Particles having an
aerodynamic diameter ranging from 0.001 to 100 m have different ecological
effects and lifespan (Farmer, 2002). Chronic PM exposure can start with a
variety of health issues (Kim et al., 2015). Because organisms are subjected to
an extensive array of uncontrollable variables such as parasites, climate
factors, and a complex pollutant mixture, estimating the impact of air
pollutants is difficult (Leghari et al., 2018a). Air pollution in cities has
become a major environmental issue in the last several decades, particularly in
developing countries and their main cities (Leghari and Zaidi, 2013). Since the
last few decades, it has been noted that as the human population grows, so does
industry and the number of automobiles. These automobiles and industries
emitted a range of air pollutants, which might lead to environmental
degradation, the destruction of all forms of roadside crops, and a reduction in
tree lifespan. Depending on the pollutant and the species' tolerance, the
nature of adverse effects can vary to some extent (Mughal et al., 2018).
The increased usage of
vehicles in urban areas has contributed to rising levels of air pollutants in
recent years. PM pollution is one of the environmental challenges. (Kardel et
al., 2010; Saebo et al., 2012).
Polycyclic aromatic
hydrocarbons, black carbon, heavy metals, and other compounds are found in
atmospheric PM, which is primarily anthropogenic in origin (such as industrial
and building activity, residential heating, and road traffic) (Saebo et al.,
2012). Further that there are potential dangers to condition, vegetation, and
wellbeing from the inappropriate treatment of strong squander. In numerous
urban regions, the private strong waste transfer practices comprise of
open-consuming utilizing barrels or other comparative gadgets rather than, or
notwithstanding, transfer to civil landfills or metropolitan strong waste
combustors. The inspirations for families that open-consume their trash may
incorporate comfort, propensity, or landfill and cost evasion. Emanations from
consuming strong private waste are discharged at ground level bringing about
diminished weakening by scattering (Leghari et al., 2015). Furthermore, the
expanding technologies and human population are causing one of the most serious
problems we face today, namely, air pollution. A key role is played by pollen
grains in plant fertility and proper insemination. A plant's fertility declines
in severe air pollution circumstances due to direct and indirect impacts on the
propagative system (Leghari et al., 2018b). Momentum administrative and examine
activities, including PM, are propelled by its impacts on human wellbeing (like
a malignant growth, coronary illness, cardiovascular infection, eye aggravation,
respiratory ailment, and asthma) Pope III et al., (2004), on deceivability, and
on the capacity of oversaw and normal biological systems (Grantz et al., 2003).
As a result, one of the essential protection responsibilities at the moment is
to reduce PM concentrations in the ambient air. In addition to minimizing PM
sources, phytoremediation is considered an additional and useful strategy for
reducing air pollution by filtering and absorbing some PM through forest crowns
and leaves (Kardel et al., 2010; Escobedo et al., 2011; Saebo et al., 2012;
Nowak et al., 2013; Popek et al., 2013). Numerous different investigations have
been directed in various zones of the world. For example, in the United States,
urban vegetation might expel around 21.49x104 t of PM every year (Nowak et al.,
2006).
To improve air quality
in extremely polluted places, Plants have a high potential to absorb PM in the
air. This research was conducted in Quetta's urban areas, which are located in
a semi-arid climate and have seen considerable development. N. oleander and L.
lucidum, a joint perennial plant species, are nominated as the examination
material for the reason of their occurrence in metropolitan regions in the
study zone. So these species were chosen to detect variations in PM deposited
on leaves over a year in various urban settings, as well as to explore the
impact of weather (rain and wind) and time on PM clearance from leaves.
Reference
Bell ML, Morgenstern
RD, Harrington W. 2011. Quantifying the human health benefits of air
pollution policies: Review of recent studies and new directions in
accountability research. Environmental. Science. Policy 14, 357–368.
[CrossRef].
Escobedo FJ, Kroeger T,
Wagner JE. 2011. Urban forests and pollution mitigation: Analyzing
ecosystem services and disservices. Environmental. Pollution 159(8-9), 2078-2087.
European Environment
Agency (EEA). 2015. Air quality in Europe 2015 report. Publications Office
of the European Union, Luxembourg.
Farmer A. 2002.
Effects of particulates. In: Bell JNB, Treshow M (eds) Air pollution and plant
life, hoboken. John Wiley & Sons Inc, New York, p187–199.
Freer-Smith PH, Beckett
KP, Taylor G. 2005. Deposition velocities to Sorbus aria, Acer
campestre, Populus deltoids × trichocarpa “Beaupr’e”, Pinus
nigra and × Cupressocyparis leylandii for coarse, fine and
ultra-fine particles in the urban environment,” Environmental. Pollution 133(1), 157–167.
Grantz DA, Garner JHB,
Johnson DW. 2003. Ecological effects of particulate
matter. Environment international 29(2-3), 213-239.
He C, Qiub K, Alahmadc
A, Pott R. 2019. Particulate matter capturing capacity of roadside
evergreen vegetation during the winter season Urban Forestry and Urban
Greening, (in press). https://www.Researchgate.Net/publication/337017974
Janhäll S. 2015.
Review on urban vegetation and particle air pollution–deposition and
dispersion. Atmospheric. Environment, 105, 130–137. [CrossRef].
Juda-Rezler K, Reizer
M, Oudinet JP. 2011. Determination and analysis of PM10 source
apportionment during episodes of air pollution in Central Eastern European
urban areas: The case of wintertime 2006. Atmospheric. Environment, 45(36), 6557-6566.
Kardel F, Wuyts K,
Babanezhad M. 2010. Assessing urban habitat quality based on specific leaf
area and stomatal characteristics of Plantago lanceolata L,”
Environmental. Pollution 158(3), 788–794.
Kim KH, Kabir E, Kabir
S. 2015. A review on the human health impact of airborne particulate
matter. Environment international 74, p 136-143.
Laghari SK, Zaidi MA,
Razaq G. 2015. Impact of solid waste burning air pollution on some
physio-anatomical characteristics of some plants. Pakistan Journal of
Botany 47(1), 225-232.
Leghari SK, Zaidi MA. 2013.
Effect of Air Pollution on the Leaf Morphology of Common Plant Species of
Quetta City. Pakistan Journal of Botany 45(S1), 447-454.
Leghari SK, Akbar A,
Qasim S, Ullah S, Asrar M, Roail H, Ahamed S, Mehmood K, Ali I. 2019.
Estimating Anticipated Performance Index and Air pollution tolerance index of
some trees and Ornamental plant species for the Construction of Green Belts.
Polish Journal of Environmental. Studies 28, 1759-1769
[online]. http://dx.doi.org/10.15244/PJOES/89587
Leghari SK, Saeed S,
Asrar M, Ahmed A, Tariq I, Marri AA, Shawani NA. 2018a. Response of sweet
cherry (Prunus avium L.) pollen grains to vehicular exhaust pollution at
Quetta, Balochistan, Pakistan. Applied Ecology and Environmental
Research 16(4), 4387-4399.
Leghari SK, Zaidi MA,
Siddiqui MF, Sarangzai AM, Shawani GR. 2018b. Stone crushing dust affects
the yield and quality of apricot fruit. Pakistan Journal of Agricultural
Science 55(2).
Leonard RJ, McArthur C,
Hochuli DF. 2016. Particulate matter deposition on roadside plants
and the importance of leaf trait combinations. Urban Forestry & Urban
Greening. 20, 249–253. [CrossRef].
Liu Y, Hong X, Zhang T,
Li C, Shi L, Ren J. 2014. In: Administration, N.I.P., PRC (Eds.), Method
for Determining Quality of Particulate Matters Retained on Plant Leaves in
Different Particle Size Ranges. Beijing Forestry University, China.
Liu-Gitz L, Britz SJ,
Wergin WP. 2000. Blue light inhibits stomatal development in soybean
isolines containing kaempferol-3-O-2????-glycosyl-gentiobioside (K9), A unique
flavonoid glycoside,” Plant, Cell and Environment 23(8), 883–891.
Matzka J, Maher
BA. 1999. Magnetic biomonitoring of roadside tree leaves: identification
of spatial and temporal variations in vehicle-derived particulates. Atmospheric
Environment 33(28), 4565–4569.
Mo L, Ma Z, Xu Y, Sun
F, Lun X, Liu X, Chen J, Yu X. 2015. Assessing the capacity of plant
species to accumulate particulate matter in Beijing, China. PLoS ONE 10,
e0140664. [CrossRef].
Mughal SA, Leghari SK,
Achakzai, AKK, Asrar M, Ismail T, Ponya Z, Rehman S, Sadiq N. 2018.
Effects of road side pollution on physio-morphology of apple. International
Journal of Biosciences 12(6), 334-345 [online]. http://dx.doi.org/10.12692/ijb/12.6.334-345
Neinhuis C, Barthlott
W. 1998. “Seasonal changes of leaf surface contamination in beech, oak,
and ginkgo in relation to leaf micromorphology and wettability, New
Phytologist 138(1), 91–98.
Nguyen T, Yu X, Zhang
Z, Liu M, Liu X. 2015. Relationship between types of urban forest and
PM2.5 capture at three growth stages of leaves. Journal of Environmental
Science-China., 27, 33–41. [CrossRef].
Nowak DJ, Crane DE,
Stevens JC. 2006. Air pollution removal by urban trees and shrubs in the
United States. Urban forestry and urban greening 4(3-4), 115-123.
Nowak, DJ, Hirabayashi
S, Bodine A, Hoehn R. 2013. Modeled PM2.5 removal by trees in Ten U.S.
Cities and associated health effects, Environmental Pollution, 178, 395–402.
Ould-Dada Z, Baghini
NM. 2001. “Resuspension of small particles from tree surfaces, Atmospheric
Environment 35(22), 3799–3809.
Pal A, Kulshreshtha K,
Ahmad KJ, Behl HM. 2002. Do leaf surface characters play a role in plant
resistance to Auto-exhaust pollution?” Flora, 197(1), 47–55.
Pope III CA, Burnett
RT, Thurston GD, Thun MJ, Calle EE, Krewski D, Godleski JJ. 2004.
Cardiovascular mortality and long-term exposure to particulate air pollution:
epidemiological evidence of general pathophysiological pathways of
disease. Circulation 109(1), 71-77.
Popek R, Gawronska H,
Sæbø A, Wrochna M, Gawronski SW. 2013. Particulate matter on foliage of 13
woody species: Deposition on surfaces and phytostabilisation in waxes a 3–year
study. International Journal of Phytoremediation 15, 245– 256.
[CrossRef].
Popek R, Łukowski A,
Karolewski P. 2017. Particulate matter accumulation – further differences
between native Prunus padus and nonnative Prunus Serotina.
Dendrobiology 78, 85–95. [CrossRef].
Prajapati SK, Tripathi
BD. 2008. Seasonal variation of leaf dust accumulation and pigment content
in plant species exposed to urban particulates pollution, Journal of
Environmental Quality 37(3), 865–870.
Prusty BAK, Mishra PC,
Azeez PA. 2005. Dust accumulation and leaf pigment content in vegetation
near the national highway at Sambalpur, Orissa, India, Ecotoxicology and
Environmental Safety, 60(2), 228–235.
Przybysz A, Sæbø A,
Hanslin HM, Gawro´ Nski SW. 2014. Accumulation of particulate matter and
trace elements on vegetation as afected by pollution level, rainfall and the
passage of time. Science of the Total Environment 481, 360–369.
[CrossRef].
Rodrıguez-Germade I,
Mohamed KJ, Rey D, Rubio B, Garc´ıa A. 2014. The influence of weather and
climate on the reliability of magnetic properties of tree leaves as proxies for
air pollution monitoring, Science of the Total Environment 468, 892–902.
Sæbø A, Popek R, Nawrot
B, Hanslin HM, Gawronska H, Gawro´nski SW. 2012. Plant species di_erences
in particulate matter accumulation on leaf surfaces. Science of the Total
Environment, 427–428, 347–354. [CrossRef].
Shao TJ, Zhao JB, Ma L. 2008.
The spatial temporal variation characteristics of air pollutants in X’ian,
Journal of Arid Land Resources and Environment 22(7), 77–83.
Sternberg T, Viles H,
Cathersides A, Edwards M. 2010 Dust particulate absorption by ivy (Hedera
helix L) on historic walls in urban Environments, Science of the Total
Environment 409(1), 162–168.
Tallis M, Taylor G,
Sinnett D, Freer-Smith P. 2011. Estimating the removal of atmospheric
particulate pollution by the urban tree canopy of London, under current and
future environments,” Landscape and Urban Planning 103(2), 129–138.
Wang ZH, Li JB. 2006.
“Capacity of dust uptake by leaf surface of Euonymus japonicas Thunb
and the morphology of captured particle in air polluted city, Ecological
Environment 15(2), 327–330.
Wang, H, Hui Shi, Wang
Y. 2015a. Effects of Weather, Time, and Pollution Level on the Amount of
Particulate Matter Deposited on Leaves of Ligustrum lucidum. Hindawi
Publishing Corporation. The Scientific World Journal, Article ID 935942, 1-8
pages http://dx.doi.org/10.1155/2015/935942
Wang H, Shi H, Wang
Y. 2015b. Effects of weather, time, and pollution level on the amount of
particulate matter deposited on leaves of Ligustrum lucidum. Science.
World Journal, 935942. [CrossRef].
Wang L, Gong H, Liao W,
Wang Z. 2015c. Accumulation of particles on the surface of leaves during
leaf expansion. Science of the Total Environment 532, 420–434.
Wang L, Hasi E, Liu L.
Gao S. 2006. “Effects of weather condition in spring on particulates density
on conifers leaves in Beijing, Chinese Journal of Ecology, 25(8), 998–1002.
Weerakkody U, Dover JW,
Mitchell P, Reiling K. 2018. Evaluating the impact of individual leaf
traits on atmospheric particulate matter accumulation using natural and
synthetic leaves. Urban forestry and urban greening 30, 98–107.
[CrossRef].
Xian Environmental
Protection Bureau. 2010. Air quality daily [EB/OL],” April 2009–May
2010, http://www.xaepb.gov.cn/ajax/comm/pm25/newMapindex.jsp
Xu X, Zhang Z, Bao L, Mo L, Yu X, Fan D, Lun X. 2017. Influence of rainfall duration and intensity on particulate matter removal from plant leaves. Science of the Total Environment 609, 11–16. [CrossRef] [PubMed].













