The Differential Sensitivity of Eastern White Pine to Three Types of Air Pollution

1973 ◽  
Vol 3 (4) ◽  
pp. 543-547 ◽  
Author(s):  
Charles R. Berry

The possibility of selecting clones of eastern white pine (Pinusstrobus L.) with specific sensitivities to different air pollution regimes was investigated. Field screening was carried out by exposing potted seedlings to field conditions for 1 year or longer in each of three areas where a particular phytotoxicant was known to predominate. The areas were characterized by the following pollution sources and major phytotoxicants: (1) power plant, sulfur dioxide; (2) fertilizer plant, fluorides; and (3) vehicular traffic, oxidants. Selections were made of: (1) trees injured during only one season in one area; (2) trees injured during both the summer and winter, but only in one area; (3) trees resistant to air pollution in all three areas; and (4) trees sensitive to air pollution in all three areas. These selections are being propagated for use as specifically sensitive bioindicators of air pollution and as resistant lines for use in seed orchards of white pine.

Author(s):  
R. A. Golikov ◽  
V. V. Kislitsyna ◽  
D. V. Surzhikov ◽  
A. M. Oleshchenko ◽  
M. A. Mukasheva

Introduction. Th e study of the infl uence of air pollution on the health of the population of industrial cities is an urgent task of preventive medicine.The purpose of the study— assessment of risk for population health of the city of Novokuznetsk, associated with the receipt in atmospheric air of polluting substances from SC «Kuznetsk TPP».Materials and methods.The paper presents the results of risk assessment for the health of the population of Novokuznetsk from the impact of atmospheric emissions of coal thermal power plant. Risks were calculated in accordance with the «Guidelines for the assessment of public health risks from exposure to chemicals that pollute the environment».Results.It was found that sulfur dioxide, coal ash, nitrogen dioxide had the largest share in the index of non-carcinogenic hazard of emissions. Th e maximum hazard index of carcinogenic substances was detected in hexavalent chromium. Th e greatest risk of immediate action, manifested in the development of refl ex reactions, was detected at two points of exposure to concentrations; it was determined by the infl uence of coal ash. In the formation of the risk of chronic intoxication, coal ash, sulfur dioxide, nitrogen dioxide, nitrogen oxide had the greatest impact; the greatest risk was detected at three points. Th e hazard coeffi  cients of the concentrations ranged from 2.04×10–4 to 6.723. The maximum index of danger equal to 29.31, corresponded to the residential district of Lenin square. Th e highest levels of carcinogenic risk identifi ed at three points were determined by exposure to hexavalent chromium.Conclusion.Th e work identifi ed environmentally disadvantaged neighborhoods of the city. It is shown that the main contribution to the formation of non-carcinogenic risk of health disorders of the city’s population is made by nitric oxide and nitrogen dioxide, coal ash, sulfur dioxide. Th e main carcinogen is hexavalent chromium. Th e total values of risks expressed in the multiplicities of excess of acceptable risk, for most points exceed 1, indicating a signifi cant impact of emissions on the health of the population. A set of atmospheric protection measures aimed at reducing risks to public health is recommended. 


1983 ◽  
Vol 13 (1) ◽  
pp. 184-187 ◽  
Author(s):  
L. F. Benoit ◽  
J. M. Skelly ◽  
L. D. Moore ◽  
L. S. Dochinger

Along the Blue Ridge Parkway in Virginia, branchlets and pollen were collected from native eastern white pine (Pinusstrobus L.) trees that were sensitive, intermediate, and tolerant to oxidant air pollution based on foliar symptom expression. Fumigation of branchlets with 0.10 ppm ozone (O3) for 4 or 8 h/day until anthesis did not affect pollen production or germinability. However, the percent germination was significantly (P ≤ 0.01) reduced in pollen exposed under wet conditions to 0.15 O3 for 4 h. The importance of this finding in the reproduction of pines is discussed.


1994 ◽  
Vol 30 (3) ◽  
pp. 247-274 ◽  
Author(s):  
James P. Bennett ◽  
Robert L. Anderson ◽  
Manfred L. Mielke ◽  
James J. Ebersole

1974 ◽  
Vol 4 (1) ◽  
pp. 65-68 ◽  
Author(s):  
Daniel B. Houston

Response of eastern white pine (Pinusstrobus L.) to ozone (O3) and sulfur dioxide (SO2) was studied utilizing controlled fumigation chambers in the greenhouse. Tolerant and sensitive clones were fumigated for 6 h at concentrations of 5, 10, 30, and 60 parts per hundred million (p.p.h.m.) O3, 2.5, 5, 15, and 45 p.p.h.m. SO2, and 2.5 p.p.h.m. SO2 plus 5 p.p.h.m. O3 in combination. Response was judged by needle elongation and two indices of direct needle damage.Ozone exposures did not produce a consistent response among tolerant and sensitive classes, while injury caused by SO2 and SO2 plus O3 correlated well with field observations of damage under ambient conditions. The most sensitive clone was injured by concentrations of SO2 as low as 2.5 ± 1 p.p.h.m. Sixty percent of the tolerant clones were injured by 5 and 15 p.p.h.m. SO2, and all tolerant material was injured at 45 p.p.h.m. SO2. The interaction of SO2 and O3 at low concentrations was established as more serious than that caused by either pollutant alone at similar levels.


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