Deposition of 2.75, 5.0 and 8.5 μm particles to plant and soil surfaces

Little, Peter C.

doi:10.1016/0013-9327(77)90023-4

Cited by 64 publications

(30 citation statements)

References 15 publications

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“…windbreaks reducing pesticide drift up to 90% when in leaf, and still up to 70% when leaves were absent. Wind tunnel tests have shown non-laminar particulate capture contributing upwards of 37% of the total particulate load (particle size = 2.75 lm) to European beech (Fagus sylvatica L.) trees, and upwards of 47% of the total load (particle size = 5.0 lm) to White poplar (Populus alba L. trees (Little 1977). …”

Section: Physical Interception Of Dust Gases and Other Aerosolsmentioning

confidence: 98%

Mitigating swine odor with strategically designed shelterbelt systems: a review

Tyndall

Colletti

2006

Agroforest Syst

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Recent reports clearly indicate that odor emitted from concentrated livestock production facilities in the Midwest of the US is a significant social problem that negatively impacts rural and state economies, human health, and the quality of rural life. A potential incremental approach to dealing with livestock odor is the use of shelterbelts arranged in strategic designs near and within livestock facilities. This review outlines the various ways that shelterbelts can be effective technology which bio-physically mitigates odor thereby reducing social conflict from odor nuisance. The biophysical potential of shelterbelts to mitigate livestock odor arises from the tree/ shrub impacts on the central characteristics and physical behavior of livestock odor. As the majority of odors generated in animal facilities that are detectable at appreciable distances travel as particulates, there is compelling evidence that shelterbelts can ameliorate livestock odor by impeding the movement of these particulates. Because the odor source is near the ground and the tendency of livestock odor is to travel along the ground, shelterbelts of modest heights (i.e. 20-30 ft) may be ideal for odor interception, disruption, and dilution. Shelterbelts can be adapted to fit almost any production situation. Depending on shelterbelt health, these trees can provide long term, year round odor interception, with increasing effectiveness over time. Additionally, more is becoming known about how landscape aesthetics affect how people might perceive livestock odor, suggesting that landscape elements such as shelterbelts can lead to aesthetic improvements and perhaps more positive opinions of livestock odor and the farm systems that create them.

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Section: Physical Interception Of Dust Gases and Other Aerosolsmentioning

confidence: 98%

Mitigating swine odor with strategically designed shelterbelt systems: a review

Tyndall

Colletti

2006

Agroforest Syst

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“…Little (77) conducted studies on the deposition of 2.75, 5.0, and 8.5 ,um particles onto plant leaves and soil. Leaves with surface irregularities that caused a more turbulent boundary layer favored the impaction of the 5 um particles.…”

Section: Discussionmentioning

confidence: 99%

Accumulation of Radionuclides by Plants as a Monitor System

Koranda¹,

Robison²

1978

Environmental Health Perspectives

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The accumulation of radionuclides by plants acting as a monitoring system in the environment may occur by two modes; foliar absorption by the leaves and shoot ofthe plant, or by root uptake from the soil. Data on plant accumulation of radionuclides may be obtained from studies of fission product radionuclides deposited as worldwide fallout, and from tracer studies of plant physiology.The epidermal features of plant foliage may exert an effect upon particle retention by leaves, and subsequent uptake of radionuclHdes from the surface. The transport of radionuclides across the cuticle and epidermis of plant leaves is determined in part by the anatomy of the leaf, and by physiological factors.The foliar uptake of fallout radionuclides, "'Sr, 131I, and 137Cs, is described with examples from the scientific literature. The environmental half-life of 131I, for example, is considerably shorter than its physical half-life because of physical and biological factors which may produce a half-life as short as 0.23/day. 9'Sr and 137Cs are readily taken up by the leaf, but '37Cs undergoes more translocation into fruit and seeds than "°Sr which tends to remain in the plant part in which it was initially absorbed.Soil-root uptake is conditioned primarily by soil chemical and physical factors which may selectively retain a radionuclide, such as '37Cs. The presence of organic matter, inorganic colloids (clay), and competing elements will strongly affect the uptake of 9°Sr and 137Cs by plants from the soil.The role of plants as monitors of radionuclides is twofold: as monitors of recent atmospheric releases of radionuclides; and as indicators of the long-term behavior of aged deposits of radionuclides in the soil.

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“…Wedding et al (1977) and Little (1977) showed that pubescent leaves captured more aerosols than smooth leaves. Beckett et al (2000b) also showed that hairy leaves enhanced the particle capture efficiency in NaCl exposure experiments.…”

Section: Trichomesmentioning

confidence: 99%

“…Laboratory experiments determined that the presence of trichomes has an effect on the deposition of fine particles on leaf surfaces (Little, 1977;Wedding et al, 1977;Beckett et al, 2000b). Wedding et al (1977) and Little (1977) showed that pubescent leaves captured more aerosols than smooth leaves.…”

Section: Trichomesmentioning

confidence: 99%

Canopy, leaf surface structure and tree phenology: Arboreal factors influencing aerosol deposition in forests

Watanabe

2015

J. Agric. Meteorol.

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In determining the effect of aerosols on forest trees, it is necessary to estimate the deposition of aerosols to forests. To this end we must consider the arboreal factors that influence the deposition of aerosols on forest trees. This paper examines such relevant factors as canopy shape, shoot structure, and leaf surface structures. Laboratory and field experiments in urban areas show that these factors play an important role in the deposition of aerosols on trees. SEM-EDX analyses have determined the chemical composition of particles deposited on the surfaces of tree leaves in urban areas. In forests, however, details of aerosol particles deposited on leaf surfaces is not known, and the effect of abiotic factors such as rainfall, fog and wind has not been determined. Further information is needed, including experimental data about the aerosols deposited on leaf surfaces of trees in a forest, taking into account canopy shape, leaf surface structures and tree phenology.

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Deposition of 2.75, 5.0 and 8.5 μm particles to plant and soil surfaces

Cited by 64 publications

References 15 publications

Mitigating swine odor with strategically designed shelterbelt systems: a review

Mitigating swine odor with strategically designed shelterbelt systems: a review

Accumulation of Radionuclides by Plants as a Monitor System

Canopy, leaf surface structure and tree phenology: Arboreal factors influencing aerosol deposition in forests

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