Patterns of fluoride accumulation in forest species as related to symptoms and defoliation

Conference · Sat Dec 31 23:00:00 EST 1977 · Proc., Annu. Meet., Air Pollut. Control Assoc.; (United States)

OSTI ID:5263744

Sidhu, S S

The results of some aspects of a 4 year study of the impact of a phosphorus plant on forest vegetation are reported. They include: (1) general development of fluoride injury symptoms in forest species, their sensitivity and threshold levels of accumulation and safe level of fluoride concentrations in the air; (2) foliar F-accumulations and defoliation; (3) long term F-accumulation patterns in conifers; (4) relationship between foliar F-accumulation and average F- concentrations in air over long periods; (5) foliar F-accumulations, severity of damage and emission levels; and (6) air quality standards, F-symptoms and F-concentration in air at Long Harbor.

• Research Organization: Canadian Forestry Service, St. Johns, Newfoundland
• OSTI ID: 5263744
• Report Number(s): CONF-780636-
• Journal Information: Proc., Annu. Meet., Air Pollut. Control Assoc.; (United States), Journal Name: Proc., Annu. Meet., Air Pollut. Control Assoc.; (United States); ISSN PRAPA
• Country of Publication: United States
• Language: English

Related Subjects

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Atmospheric-- Regulations-- (-1989)
54 ENVIRONMENTAL SCIENCES
560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AIR POLLUTION
AIR QUALITY
BIOLOGICAL ACCUMULATION
CANADA
CONIFERS
ECOLOGICAL CONCENTRATION
ELEMENTS
ENVIRONMENTAL QUALITY
FLUORIDES
FLUORINE COMPOUNDS
FOLIAR UPTAKE
FORESTS
HALIDES
HALOGEN COMPOUNDS
INJURIES
ISLANDS
NEWFOUNDLAND
NONMETALS
NORTH AMERICA
PHOSPHORUS
PLANTS
POLLUTION
SENSITIVITY
STANDARDS
SYMPTOMS
UPTAKE