440. Retrospective Exposure Assessment Using Subjective Expert Inputs to Evaluate Time Activity Patterns and Limited Historical Concentration Measurements in a Nickel Smelter

1999 ◽  
Author(s):  
K. Forte ◽  
G. Ramachandran
Keyword(s):  
Exposure Assessment ◽  
Activity Patterns ◽  
Time Activity ◽  
Nickel Smelter ◽  
Concentration Measurements

scholarly journals Effects of Individual and Environmental Factors on GPS-Based Time Allocation in Urban Microenvironments Using GIS

2018 ◽  
Vol 8 (10) ◽  
pp. 2007 ◽  
Author(s):  
Audrius Dėdelė ◽  
Auksė Miškinytė ◽  
Irma Česnakaitė ◽  
Regina Gražulevičienė
Keyword(s):  
Environmental Factors ◽  
Exposure Assessment ◽  
Time Allocation ◽  
Activity Patterns ◽  
Personal Exposure ◽  
Health Impact ◽  
Individual Characteristics ◽  
Time Activity ◽  
Study Results ◽  
The Impact

Time-activity patterns are an essential part of personal exposure assessment to various environmental factors. People move through different environments during the day and they have different daily activity patterns which are significantly influenced by individual characteristics and the residential environment. In this study, time spent in different microenvironments (MEs) were assessed for 125 participants for 7 consecutive days to evaluate the impact of individual characteristics on time-activity patterns in Kaunas, Lithuania. The data were collected with personal questionnaires and diaries. The global positioning system (GPS) sensor integrated into a smartphone was used to track daily movements and to assess time-activity patterns. The study results showed that behavioral and residential greenness have a statistically significant impact on time spent indoors. These results underline the high influence of the individual characteristics and environmental factors on time spent indoors, which is an important determinant for exposure assessment and health impact assessment studies.

scholarly journals Investigating Activity Patterns and Time Spent for Exposure Assessment of College Buildings in Korea

2014 ◽  
Vol 32 ◽  
pp. 756-761 ◽  
Author(s):  
Jin Ki Eom ◽  
Kwang Sub Lee ◽  
Dae-seop Moon ◽  
Duckshin Park ◽  
Keun Yul Yang
Keyword(s):  
Exposure Assessment ◽  
Activity Patterns

scholarly journals MobRISK: a model for assessing the exposure of road users to flash flood events

2017 ◽  
Vol 17 (9) ◽  
pp. 1631-1651 ◽  
Author(s):  
Saif Shabou ◽  
Isabelle Ruin ◽  
Céline Lutoff ◽  
Samuel Debionne ◽  
Sandrine Anquetin ◽  
...  
Keyword(s):  
Exposure Assessment ◽  
Flash Flood ◽  
Activity Patterns ◽  
Traffic Load ◽  
Road User ◽  
Population Exposure ◽  
Flood Events ◽  
Population Mobility ◽  
Road Users ◽  
Adverse Weather

Abstract. Recent flash flood impact studies highlight that road networks are often disrupted due to adverse weather and flash flood events. Road users are thus particularly exposed to road flooding during their daily mobility. Previous exposure studies, however, do not take into consideration population mobility. Recent advances in transportation research provide an appropriate framework for simulating individual travel-activity patterns using an activity-based approach. These activity-based mobility models enable the prediction of the sequence of activities performed by individuals and locating them with a high spatial–temporal resolution. This paper describes the development of the MobRISK microsimulation system: a model for assessing the exposure of road users to extreme hydrometeorological events. MobRISK aims at providing an accurate spatiotemporal exposure assessment by integrating travel-activity behaviors and mobility adaptation with respect to weather disruptions. The model is applied in a flash-flood-prone area in southern France to assess motorists' exposure to the September 2002 flash flood event. The results show that risk of flooding mainly occurs in principal road links with considerable traffic load. However, a lag time between the timing of the road submersion and persons crossing these roads contributes to reducing the potential vehicle-related fatal accidents. It is also found that sociodemographic variables have a significant effect on individual exposure. Thus, the proposed model demonstrates the benefits of considering spatiotemporal dynamics of population exposure to flash floods and presents an important improvement in exposure assessment methods. Such improved characterization of road user exposures can present valuable information for flood risk management services.

scholarly journals Reproductive behavior of White-tailed Kites (Elanus leucurus) in the Pampas of Argentina

2019 ◽  
Vol 27 (3) ◽  
pp. 153-157
Author(s):  
Alejandro V. Baladrón ◽  
Matilde Cavalli ◽  
Matías G. Pretelli ◽  
María S. Bó
Keyword(s):  
North America ◽  
Species Distribution ◽  
Reproductive Behavior ◽  
Activity Patterns ◽  
Behavioral Pattern ◽  
Nest Construction ◽  
Food Provisioning ◽  
Breeding Behavior ◽  
Time Activity ◽  
Nearctic Region

AbstractThe White-tailed Kite (Elanus leucurus) is a raptor that has been less studied in the Neotropics than in the Nearctic region, especially in relation to its reproductive behavior. In this study, we report information about the phenology and activity patterns of this raptor at the Pampas of Argentina. We found that White-tailed Kites have a prolonged breeding season, from October to May. Time-activity budgets of mating pairs indicated a pronounced division of roles in parental care between sexes. Females devoted most of their time to nest construction, incubation and chick care (80% of total time) and males to food provisioning and vigilance (70% of total time). We registered 11 cases of prey transfer from the male to the female. In four cases the transfer occurred in flight and in the remaining seven cases while individuals were perched. Our results agree with general patterns on breeding behavior of White-tailed Kites from North America, suggesting a consistent behavioral pattern throughout the species’ distribution.

Game domestication for animal production in Kenya: activity patterns of eland, oryx, buffalo and zebu cattle

1977 ◽  
Vol 89 (3) ◽  
pp. 551-563 ◽  
Author(s):  
J. G. Lewis
Keyword(s):  
Heat Load ◽  
Feeding Habits ◽  
Activity Patterns ◽  
Arid Environment ◽  
High Heat ◽  
Early Morning ◽  
Zebu Cattle ◽  
Feeding Time ◽  
Time Activity ◽  
Semi Arid

SummaryStudies of the day-time activity of night-enclosed eland, oryx, buffalo and cattle in a hot, semi-arid area in Kenya showed that, on average, eland spent 70% of the day feeding, oryx 60% and buffalo and cattle 52%.The distribution of activity throughout the day of all species was similar and the mobile activities of feeding and walking tended to be concentrated in the early morning and late evening.Correlation and multiple regression analyses were used to investigate changes in the activity of the animals in relation to changes in meterological and vegetative factors. The activity of both eland and buffalo was found to be particularly sensitive to the meterological factors.The duration of feeding for cattle and buffalo was related to the state of the vegetation, but that of the oryx was not. Similar analyses were not possible for eland.The activity of each species could be related to mouth size, feeding habits and the effectiveness of the animals' coat in dealing with conditions of high heat load.It is concluded that a naturally short daily feeding time and an independence of activity from the environmental heat load on the animals are advantageous characteristics for a species under domestication in a hot semi-arid environment.

scholarly journals Report-back for geo-referenced environmental data: A case study on personal monitoring of temperature in outdoor workers

2018 ◽  
Vol 13 (1) ◽  
Author(s):  
Laura Thompson ◽  
Maggie Sugg ◽  
Jennifer Runkle
Keyword(s):  
Activity Patterns ◽  
Heat Exposure ◽  
Personal Exposure ◽  
Environmental Data ◽  
Eastern United States ◽  
Time Activity ◽  
Individual Level ◽  
Behavioural Modification ◽  
The Individual

Few studies have evaluated the benefits of reporting back participatory environmental monitoring results, particularly regarding participant motivation toward behavioural modification concerning workplace heat exposure. This study evaluated the individual data report-back for geo-located environmental temperature and time activity patterns in grounds maintenance crews in three geographic regions across the South-eastern United States. Surveys collected information on worker interpretation of their results and intended action(s) to reduce heat exposure. Worker response was highly positive, especially among more experienced workers who expressed a greater willingness to modify personal behaviour to reduce heat stress. Individual-level report-back of environmental data is a powerful tool for individuals to understand and act on their personal exposure to heat.

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