A composition to render wood fire-proof

Polycyclic aromatic hydrocarbons (PAHs) are a component of air pollutants that are costly to measure using traditional air-quality monitoring methods. We used an epiphytic bio-indicator (moss genus: Orthotrichum) to cost-effectively evaluate atmospheric deposition of PAHs in Portland, Oregon in May 2013. However, it is unclear if measurements derived from these bioindicators are good proxies for human exposure. To address this question, we simultaneously, measured PAH-DNA adducts in blood samples of non-smokers residing close to the sites of moss measurements. We accounted for individual determinants of PAH uptake that are not related to environmental air quality through questionnaires, e.g., wood fires, consumption of barbecued and fried meats. Correlation and linear regression (to control for confounders from the lifestyle factors) evaluated the associations. We did not observe evidence of an association between PAH levels in moss and PAH-DNA adducts in blood of nearby residents, but higher level of adduct were evident in those who used wood fire in their houses in the last 48 hours. It remains to be determined whether bio-indicators in moss can be used for human health risk assessment.

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Estimation of the influence of wood-fire retardants on fire behavior of some types of wood construction materials

Journal of Physics Conference Series ◽

10.1088/1742-6596/1105/1/012039 ◽

2018 ◽

Vol 1105 ◽

pp. 012039 ◽

Cited By ~ 2

Author(s):

D P Kasymov ◽

M V Agafontsev ◽

V V Perminov

Keyword(s):

Fire Behavior ◽

Construction Materials ◽

Fire Retardants ◽

Wood Construction ◽

Wood Fire

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Development of Physical Pretreatment Method for Wood Fire Retardant Impregnation

BioResources ◽

10.15376/biores.12.2.3778-3789 ◽

2017 ◽

Vol 12 (2) ◽

Author(s):

Hee-Jun Park ◽

Ming-Yu Wen ◽

Chun-Won Kang ◽

Yao-Xing Sun

Keyword(s):

Fire Retardant ◽

Pretreatment Method ◽

Wood Fire

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Application of analytical pyrolysis for wood fire protection control

Journal of Analytical and Applied Pyrolysis ◽

10.1016/j.jaap.2006.10.019 ◽

2007 ◽

Vol 79 (1-2) ◽

pp. 47-51 ◽

Cited By ~ 24

Author(s):

G. Dobele ◽

I. Urbanovich ◽

A. Zhurins ◽

V. Kampars ◽

D. Meier

Keyword(s):

Fire Protection ◽

Analytical Pyrolysis ◽

Wood Fire

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Study on the Effects of Microwave Pretreatment on the Fire Retardant Permeability of Fast-Growing Wood

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.423-426.1334 ◽

2013 ◽

Vol 423-426 ◽

pp. 1334-1338 ◽

Cited By ~ 1

Author(s):

Jian Zhang ◽

Shao Fei Yuan ◽

Kui Hong Wang ◽

Qin Li

Keyword(s):

Loss Rate ◽

Oxygen Index ◽

Mass Loss Rate ◽

Fire Retardant ◽

Chinese Fir ◽

Test Results ◽

Combustion Time ◽

Implantation Depth ◽

Wood Fire ◽

Fire Retardant Properties

The paper preheated poplar and Chinese fir with microwave before dipping into fire retardant solution with the purpose of improving their permeability. The test results showed that microwave increased the routs for liquid which proved to be a feasible way to facilitate fire retardant solution to enter into wood. Fire retardant loading dosage (FRLD) and implantation depth (ID) increased for both poplar and Chinese fir. Fire retardant properties such as oxygen index (OI), mass loss rate (MLR) and flame combustion time (FCT) increased and can meet the fire retardant wood requirements defined by standard of GA/T 42.1-92.

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Making Wood Fire-proof

Scientific American ◽

10.1038/scientificamerican10101857-38a ◽

1857 ◽

Vol 13 (5) ◽

pp. 38-38

Keyword(s):

Wood Fire

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A SURVEY OF VASCULAR PLANT SPECIES IN THE DRY SEASON, CAM MOUNTAIN, AN GIANG PROVINCE

Vietnam Journal of Science and Technology ◽

10.15625/2525-2518/54/2a/11912 ◽

2018 ◽

Vol 54 (2A) ◽

pp. 64

Author(s):

Nguyen Thi Hai Ly

Keyword(s):

Plant Species ◽

Wood Species ◽

Vascular Plant ◽

Herbal Medicines ◽

Dry Season ◽

H Index ◽

Average Value ◽

Wood Fire ◽

Data Book ◽

Small Wood

The survey which was conducted in the dry season (from February to April) in Cam Mountain, reported 49 plant species belonged to 45 genera and 29 families. These species include 10 big wood species (G) (20.4 %), 14 small wood species (g) (28.6 %), 7 bush species (17.2 %), 9 creeper species (18.4 %) and 9 herbaceous species (18.4 %). There are 33 species used for herbal medicines, 12 species for wood fire, 11 species for fruit, 10 species for household tools and 9 species for food. Pterocarpus macrocapus Kurz is the species that listed in Viet Nam Red Data Book (2007). The average value of Margalef (d) and Pielou (J’) indexes are 2.45 ± 0.37 and 0.94 ± 0.02, respectively. There are 54.5 % quadrates which (d) and (J’) indexes are higher than Margalef (d) and Pielou (J’) indexes. The Shannon – Weiner (H’) index of 63.6 % quadrats is higher than the average value of Shannon - Weiner index (1.94 ± 0.19). The number of species at quadrats O1T1, O3T1 and O1T2 are more diverse than other quadrats. The transect 1 (T1) to the east is more diverse than the transect 2 to the west of Cam forest.

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