Determinación de Factores de Emisión de Compuestos Orgánicos Volátiles de Dos Especies Arbóreas Nativas de La Región Metropolitana, Chile

Préndez, Margarita; Peralta, H.

doi:10.4067/s0718-07642005000100004

Cited by 4 publications

(2 citation statements)

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“…We analyzed a set of autochthonous tree species and an introduced species planted in the city, comparing their characteristics and behaviors in an urban environment using urban tree recognition guides and studies related to BVOC emissions [63][64][65][66][67].…”

Section: Tree Speciesmentioning

confidence: 99%

Configurations for Four Urban Tree Species in the Santiago Metropolitan Region and Their Impact on the Environment According to CO2, PM2.5, Biogenic Volatile Organic Compounds and Water Resource Criteria

Díaz,

Blanco,

Almendro-Candel

et al. 2023

Buildings

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The rapid and disproportionate growth of many cities in South America, such as Santiago de Chile, has not included a design that considers the impact caused. Furthermore, industrial and housing growth has been based mainly on unsustainable economic criteria, attributing less importance to environmental criteria. This has caused problems related to global warming, pollution, water scarcity and health, especially harming populations with fewer resources. This study estimates and compares the impact of four tree species commonly used at the urbanization level, according to variables such as carbon dioxide (CO2), fine particulate matter (PM2.5), water resources, and biogenic volatile organic compounds (BVOCs). Then, we will use the variable PM2.5 to assess the trees’ impact on the population and their economic resources using these tree species as a method of capturing this pollutant. The results obtained will be used to determine which one of the four species is the most suitable in each type of space within the Metropolitan Region of Chile (small spaces, uncultivated areas, large spaces near industrial areas, areas with patients with breathing problems, etc.) according to three criteria: a comparison between species using the number of trees in the investigated territory; contrasting the species with the amount of social housing; and a comparison between the species according to the total number of dwellings.

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Section: Tree Speciesmentioning

confidence: 99%

Configurations for Four Urban Tree Species in the Santiago Metropolitan Region and Their Impact on the Environment According to CO2, PM2.5, Biogenic Volatile Organic Compounds and Water Resource Criteria

Díaz,

Blanco,

Almendro-Candel

et al. 2023

Buildings

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“…The volatile organic compounds emitted by C. alba are said to be composed mainly of eucalyptol, limonene, β-myrcene, α-pinene, and camphene. 38 Different reports on the leaf EO of C. alba show different major constituents, which may be terpinen-4-ol, α- terpineol, or β-bergamotene. Such differences, like those shown recently for C. mandioccana of the Brazilian Atlantic Forest, may be induced by environmental influences or may have a genetic basis, although the available information is insufficient to clarify this point.…”

mentioning

confidence: 99%

Variation of Secondary Metabolites in the Aerial Biomass of Cryptocarya alba

Giordano

Fuentes-Barros

Castro-Saavedra

et al. 2019

Natural Product Communications

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Cryptocarya alba is an important tree species in the Chilean sclerophyllous forest. Its leaves and bark are used in traditional medicine to treat liver diseases and rheumatism. Analyses of the essential oil (EO) show serious discrepancies, and information on other constituents is limited. The aerial biomass of individual trees from 3 wild populations, some old trees, and farmed saplings were analyzed ( n = 132). The EO profiles were studied by gas chromatography/mass spectrometry (GC/MS). The alkaloidal and polyphenol compositions were determined by ultra-high-performance liquid chromatography (UHPLC)/MS-MS. The total polyphenol content, the total flavonoid content, and the antioxidant capacity (diphenylpicrylhydrazyl, azinobisethylbenzothiazolinesulfonic acid, and ferric reducing antioxidant power: DPPH, ABTS, and FRAP respectively) were determined by standard methods. Significant differences were found at the individual and population levels in the contents of polyphenols, total flavonoids, antioxidant capacity, and specific alkaloids for leaves, bark, and wood. Farmed saplings grown under less light showed higher concentrations of higenamine, N-methylcoclaurine, N-methyllaurotetanine, and isocorydine, while those receiving more light were richer in laurolitsine, boldine, coclaurine, catechin, quercetin, epicatechin, quercitrin, and procyanidins. Important variations were found according to the season, age of the tree and of the leaves. The EO composition also varied considerably. These results support the idea that the natural variability of medicinal species is an important subject for study.

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Ozone distribution in the lower troposphere over complex terrain in Central Chile

Seguel

Mancilla²,

Rondanelli

et al. 2013

JGR Atmospheres

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[1] Observations were performed in 12 communities of Central Chile in order to determine the horizontal gradients of ozone in the Santiago Basin and surrounding valleys. Higher ozone mixing ratios were found northeast of the Santiago Basin and included east of the Aconcagua Valley (~70 km from Santiago) suggesting that photochemical pollution produced in Santiago is capable of passing through the Chacabuco mountain chain (~1.3 km) and have impact downwind from the regions with the largest NO x and VOC emissions. To complement existing surface observations, ozonesonde and tethersonde campaigns were performed in the Santiago Basin and the Aconcagua Valley. The results suggest ozone can accumulate in layers aloft (e.g., >102 ppb at 2 km) similarly to layers observed in complex topography coastal regions like Southern California. Layers of significant ozone concentrations having a near surface origin were observed above the mixed layer and below the subsidence inversion base. We propose that the ozone in this residual layer can be transported large distances (at least to 70 km) to further penetrate into the local environment under conditions of a well-mixed boundary layer.

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Determinación de Factores de Emisión de Compuestos Orgánicos Volátiles de Dos Especies Arbóreas Nativas de La Región Metropolitana, Chile

Cited by 4 publications

References 0 publications

Configurations for Four Urban Tree Species in the Santiago Metropolitan Region and Their Impact on the Environment According to CO2, PM2.5, Biogenic Volatile Organic Compounds and Water Resource Criteria

Configurations for Four Urban Tree Species in the Santiago Metropolitan Region and Their Impact on the Environment According to CO2, PM2.5, Biogenic Volatile Organic Compounds and Water Resource Criteria

Variation of Secondary Metabolites in the Aerial Biomass of Cryptocarya alba

Ozone distribution in the lower troposphere over complex terrain in Central Chile

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