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101.
The unique observations and experiences of users of suburban natural areas lead them to perceive their surroundings in a manner
associated with their personal values. It follows that every individual has a unique cognitive decision-making structure.
This paper examines users’ affective and cognitive evaluation of a particular suburban natural area by applying the means-end
chain method to reveal the cognitive mechanism by which users link the attributes and benefits of an environmental public
good with their own personal values. Analysis of a survey conducted of visitors to a Spanish suburban natural area (park)
reveals the main attributes to be the opportunity to practice sports and proximity of the park and the main potential benefits
to be the improvement of physical and psychological well-being. The desired personal values include fun, quality of life and
self-fulfillment at the individual level and improved social relationships at the collective level. The paper also tests for
cross-group, cognitive-structure differences in visitor groups, segmented by level of satisfaction and reported range of emotions,
and finds that perceived physical and psychological health improvements and individual and social awareness increase with
higher levels of satisfaction and emotional response. Therefore, the recommendations for natural area management suggested
by these findings include enhancing the scenic beauty and peacefulness of suburban natural areas in order to improve the affective
state of visitors because this could contribute to reducing social costs (including health care) within the area of influence
of the natural area. 相似文献
102.
Robert Sobkowiak Natalia Bojarska Emilia Krzyżaniak Karolina Wągiel Nikoletta Ntalli 《Journal of environmental science and health. Part. B》2018,53(8):493-502
Plant-parasitic nematodes, such as Meloidogyne incognita, cause serious damage to various agricultural crops worldwide, and their control necessitates environmentally safe measures. We have studied the effects of plant secondary metabolites on M. incognita locomotion, as it is an important factor affecting host inoculation inside the soil. We compared the effects to the respective behavioral responses of the model saprophytic nematode Caenorhabditis elegans. The tested botanical nematicides, all reported to be active against Meloidogyne sp. in our previous works, are small molecular weight molecules (acids, alcohols, aldehydes, and ketones). Here, we specifically report on the attractant or repellent properties of trans-anethole, (E,E)-2,4-decadienal, (E)-2-decenal, fosthiazate, and 2-undecanone. The treatments for both nematode species were made at sublethal concentration levels, namely, 1 mM (<EC50), and the chemical controls used for the experiments were the commercial nematicides fosthiazate and oxamyl. According to our results, trans-anethole, decenal, and oxamyl attract C. elegans, while 2-undecanone strongly attracts M. incognita. These findings can be of use in the development of nematicidal formulations, contributing to the disruption of nematode chemotaxis to root systems. 相似文献
103.
104.
Natalia Valero Inmaculada Aguilera Sabrina Llop Ana Esplugues Audrey de Nazelle Ferran Ballester Jordi Sunyer 《Environment international》2009,35(8):1196-1201
Determinants of outdoor, indoor and personal concentrations of nitrogen dioxide (NO2) were assessed in a subset of pregnant women of the Spanish INMA (Environment and Childhood) Study. Home indoor and outdoor NO2 concentrations were measured during 48 h with passive samplers for 50 and 58 women from the INMA cohorts of Valencia and Sabadell, respectively. Women from Sabadell also carried personal NO2 samplers during the same period. Data on time–activity patterns, socio-economic characteristics, and environmental exposures were obtained through questionnaires. Multiple linear regression models were developed to predict NO2 levels.In Valencia, median outdoor NO2 levels (42 µg/m3) were higher than median indoor levels (36 µg/m3). In Sabadell, personal NO2 showed the highest median levels (40 µg/m3), followed by indoor (32 µg/m3) and outdoor (29 µg/m3) levels. Personal exposure to NO2 correlated best with the indoor NO2 levels. Temporal and traffic-related variables were significant predictors for outdoor NO2 levels. Thirty-two percent of the indoor NO2 variability in the two cohorts was explained by outdoor NO2 levels and the use of the gas appliances. The model for personal exposure accounted for 59% of the variance in NO2 levels in Sabadell with four predictor variables (outdoor and indoor NO2 levels, time spent in outdoor environments and time exposed to a gas cooker). No significant association was found between personal or indoor NO2 levels and exposure to environmental tobacco smoke (ETS) at home.Personal NO2 levels were found to be strongly influenced by indoor NO2 concentrations. The study supports the use of time–activity patterns along with indoor measurements to predict personal exposure to traffic-related air pollution. 相似文献
105.
Morales-Caselles C Jiménez-Tenorio N Riba I Sarasquete C DelValls TA 《Environmental monitoring and assessment》2007,131(1-3):211-220
Sediments in the National Park of the Atlantic Islands (Galicia, Spain) were affected by the spill of the tanker Prestige (November, 2002) and still present high levels of Polycyclic aromatic hydrocarbons. The adverse effects associated with the
contaminants in sediments were tested using a chronic bioassay, exposing juveniles of the fish Sparus aurata (seabream). A toxicokinetic approach is proposed to evaluate sediment quality by linking chemical and ecotoxicological data
along the time. Sediment samples were physicochemically characterized and the concentration of contaminants (Polycyclic aromatic
hydrocarbons – PAHs – and metals) was measured. Fishes were exposed to contaminated sediments, and samples from different
tissues were collected every 15 days throughout the 60 days that lasted the experiment. A biomarker of exposure (ethoxyresorufin
O-deethylase activity – EROD activity) and a biomarker of effect (histopathology) were analyzed during the exposure period.
Results show a relationship between the biomarkers and the concentrations in sediments of polycyclic aromatic hydrocarbons—PAHs.
Besides, the toxicokinetic approach links biomarkers response providing information about the relationship between the detoxification
process and the damages observed in the different tissues. The frequency of the histological damage is highest when the EROD
activity slightly decreases in accordance with the mechanism of detoxification of this enzymatic system against PAHs and other
organic contaminants. 相似文献
106.
Arévalo-Jaramillo Paulina Idrobo Alicia Salcedo Lorena Cabrera Andrea Vintimilla Andrea Carrión Mayra Bailon-Moscoso Natalia 《Environmental science and pollution research international》2019,26(24):24911-24921
Environmental Science and Pollution Research - Toxicity refers to the potential of a substance such as a pesticide to cause damage to the structure or functions of an exposed organism. Pesticides... 相似文献
107.
Loste Natalia Roldán Esther Giner Beatriz 《Environmental science and pollution research international》2020,27(6):6215-6227
Environmental Science and Pollution Research - The main goal of this research is to evaluate the contributions of Green Chemistry as a potential tool to drive the transition to circularity. For... 相似文献
108.
Aline Frumi Camargo Fbio Spitza Stefanski Thamarys Scapini Sabrina Natalia Weirich Cleiton Ulkovski Carine Carezia Eduarda Roberta Bordin Vanusa Rossetto Francisco Reichert Júnior Leandro Galon Gislaine Fongaro Altemir Jos Mossi Helen Treichel 《环境质量管理》2019,29(1):37-42
The intensive and abundant use of synthetic herbicides has been questioned in recent decades due to the strong dependence and also the resistance effects that are identified in weeds. Several grain crops suffer from the weed control system because many of the weeds are already resistant to the main herbicides that are used. In recent years, there has been a large gap in the market without the addition of new synthetic herbicides with mechanisms of action that differ from those already existing. The objective of this short piece is to address and overcome this challenge and bring an innovative and alternative solution that proposes a synergistic action system between bioherbicides produced by the fungus Trichoderma koningiopsis and synthetic herbicides (2,4‐dichlorophenoxyacetic acid, glyphosate, and ammonium glufosinate). The plants included in this study were Bidens pilosa (amor seco, or in the United States, beggar ticks or Spanish needle), Euphorbia heterophylla (adeus‐brasil), and Conyza bonariensis (margaridinha‐do‐campo, or, in the United States, hairy fleabane or asthmaweed). It was verified that, in the application of the biocomposites in the presence of chemical herbicides, potentiation of the phytotoxic action (100%) occurred under the target plants, emphasizing phytotoxicity to the weed, C. bonariensis, which is currently resistant to available herbicides. The bioherbicides studied have promising characteristics to be explored in the biocontrol of weeds. 相似文献
109.
Jiménez-Tenorio N Morales-Caselles C Kalman J Salamanca MJ de Canales ML Sarasquete C DelValls TA 《Environment international》2007,33(4):474-480
Sediment quality assessments for regulatory purposes (i.e. dredged material disposal) are characterized by linking chemical and acute ecotoxicological data. The design of chronic bioassays that incorporate more sensible endpoints than acute tests is discussed to address sediment quality for environmental quality assessment and regulatory proposes. The chronic tests use juveniles of commercial species of fish Sparus aurata and Solea senegalensis, to assess sediment toxicity in samples collected along different littoral areas in the North and the South of Spain. The organisms were exposed during 60 days and sublethal endpoints were selected including biomarkers of exposure to metals (metallothioneins - MTs) and to organic contaminants (ethoxyresorufin-O-deethylase activity - EROD activity) and biomarkers of effect (histopathology in different tissues, gill and liver). A Multivariate Analysis Approach was conducted in order to associate these biological responses with sediment metal concentration from the ports and with chemical residues in biological tissues exposed to sediments under laboratory conditions. 相似文献
110.
Korobova EM Brown JB Ukraintseva NG Surkov VV 《Journal of environmental radioactivity》2007,96(1-3):144-156
Plant species, forming important components of Arctic food chains and of interest from a monitoring perspective, were studied at 36 plots representing flood plain and terrace landscapes of the Yenisey River and Estuary from its upper delta to the gulf. (137)Cs contamination densities at the plots varied from 0.35kBq/m(2) (central delta, sandy riverside plot) to 88kBq/m(2) (the upper delta plot) indicating both global and regional sources of anthropogenic pollution. Cs-137 levels in plants were within the range expected from global fallout inputs and varied from 31 to 140Bq/kg d.w. increasing in dominant groups in the order: grasses相似文献