WorldCat Identities

Fenske, Richard A.

Works: 14 works in 17 publications in 1 language and 586 library holdings
Genres: Academic theses  Handbooks and manuals 
Roles: Author, Thesis advisor
Publication Timeline
Most widely held works by Richard A Fenske
Fluorescent tracer evaluation of protective clothing performance by Richard A Fenske( )

2 editions published in 1993 in English and held by 554 WorldCat member libraries worldwide

Fluorescent tracer evaluation of protective clothing performance by Richard A Fenske( Book )

2 editions published in 1993 in English and held by 8 WorldCat member libraries worldwide

Fluorescent tracer manual : an educational tool for pesticide safety educators by Richard A Fenske( )

1 edition published in 2007 in English and held by 5 WorldCat member libraries worldwide

A fluorescent tracer technique for assessing dermal exposure to pesticides by Richard A Fenske( )

2 editions published in 1984 in English and held by 4 WorldCat member libraries worldwide

The exposure assessment technique which has been developed employs commercially available Fluorescent Whitening Agents (FWA) as tracers, and video imaging analysis to quantify the extent and distribution of pesticide deposition on the skin surface. The tracer is introduced into a spray apparatus in proportion to the pesticide and normal application procedures followed. The skin of the worker is examined following spraying under long wave ultra-violet light
Passive and active air sampling for residential exposures to airborne organophosphorus pesticides and oxygen analogs ("Oxons") in central Washington State by Jenna L Armstrong( )

1 edition published in 2012 in English and held by 3 WorldCat member libraries worldwide

Organophosphorus (OP) pesticides are some of the most widely used insecticides in the United States, and spray applications are a concern for public health due to potential human exposures from distant transport via off target volatilization and particulate drift. Initial tests on active air sampling methods found the NIOSH recommended sampling matrix (OVS XAD-2 Resin Tubes) to artificially transform substantial amounts of chlorpyrifos (CPF) to its oxygen analog (CPF-O) in the laboratory (up to 32%) and in the field, leading to inaccuracies in reported levels CPF and CPF-O in past field studies. A series of side-by-side tests identified the PUF matrix as a superior sampling medium for OP pesticides and their oxygen analogs. Passive air sampling methods were developed and tested in a laboratory exposure chamber and in the field to measure airborne exposures to OP pesticides and oxygen analogs in an agricultural community. Results show that the new PUF-PAS method combined with sensitive analysis (LC/MS-MS) may be used to improve our understanding of the continued fate and transport at low levels typical of residential communities down to method limits of quantification of 0.01to 0.05 ng/m³. PUF-PAS air sampling rates were similar to other semi-volatile organic compounds (SVOCs), ranging from 1.6-8.4 m³/day. The PUF-PAS devices were deployed in the Yakima Valley region of Washington State and measured cumulative monthly air concentrations during pre-thinning, thinning, and non-application seasons. Results demonstrated that air concentrations of CPF during pre-thinning season were 5-10x higher than AZM during thinning season. Households proximal to tree fruit fields ([greater or equal to]250m) reported significantly higher outdoor air concentrations CPF and AZM than non-proximal households. Indoor air concentrations were significantly reduced compared to outdoors, and farmworker households reported higher mean air concentrations of CPF than non-farmworker households. Very few samples detected oxygen analogs indoors. Indoor surface deposition (ng/m²) and air concentration (ng/m³) measurements were correlated. Higher proportions of oxygen analogs (2-35%) were identified in air, particularly in samples further from potential sources of application and during times of increased cumulative solar radiation (mJ/m²). This research highlights the ability of oxygen analogs ability to persist in air, resulting from atmospheric transport, photolysis, or reaction with oxidizing agents. Opportunity for exposure to oxygen analogs outdoors is a greater concern than indoor exposures. When considering cumulative and aggregate effects of exposure to OP pesticides in order to protect the unique health needs of children, the inclusion of oxygen analogs in risk assessments is necessary
Methodology to assess forest fire impacts on air quality and human health in Washington State : a case study on the 2006 Tripod wildfires by Angel Ip( )

1 edition published in 2013 in English and held by 3 WorldCat member libraries worldwide

Fire is an essential ecological process. However, forest fire burn area in the Pacific Northwest is likely to double or even triple by the end of the 2040s based on projected climate change models and ecosystem evaluations. The projected increase in forest fires has negative health implications because of air quality impacts. This study aims to characterize the linkage between air quality degradation due to wildfires and hospital respiratory and cardiovascular admissions, using the 2006 Tripod wildfires as a case study. The 2006 Tripod wildfires included the Spur Peak and Tripod Complex wildfires and were some of the largest wildfires in the past half-century in Washington State. Air monitoring and air modeling data were used for different research analyses. Air monitoring data from the U.S. Environmental Protection Agency (EPA) and the U.S. Forest Service (USFS) were analyzed to assess any potential air quality degradation and air monitor availability during the Tripod wildfire event. The USFS smoke plume modeling data containing geospatial estimates of exposure for 33 days were used for analyses that linked air quality data to hospitalization and population data. Using a case-crossover epidemiological study, the relationship between air quality and respiratory and cardiovascular hospitalizations was assessed. The case-crossover analysis was based on resident zip code exposures, and conducted using USFS air quality modeling data and respiratory and cardiovascular hospitalization records from the Washington comprehensive hospital abstract reporting system. Hospital relative rates addressing cardiovascular and respiratory hospitalizations impacts and exposure impacts in zip codes in Okanogan and surrounding counties were also assessed during the 33-day period, using 2010 Census data because the 2010 data had the most spatial coverage for the study area of interest. Lastly, modeled air quality data were compared against monitoring data from the EPA and USFS to assess the model's validity, sensitivity, and specificity. Air monitoring data from the EPA and USFS showed that there were higher than normal air quality degradation during the 2006 Tripod wildfire event. No significant results were found for modeled air quality data and their impacts on cardiovascular and respiratory hospitalizations in several epidemiological analyses by hospital zip codes and residential zip codes. The research found that current air quality model data systems are not accurate predictors of ground-level air monitor data systems. For future studies, two scientific recommendations were determined. First, the medians and means of the modeled air quality values prior to the hospitalization date were found to be more meaningful, in comparison to mean modeled air quality value on the hospitalization date. Second, age categories for sensitive and non-sensitive populations (three age categories) were found to be more useful than finer divisions of six age categories. Policy recommendations to improve this type of research include increasing governmental agency coordination, improving the air quality monitoring network and air models, and having further research on the impact of wildfire events on air quality and hospitalizations. Additional suggestions were also made for future research into this subject including focusing on a smaller population and using smartphones to measure air quality and other types of data to address health impacts
Pesticide use in New Jersey : implications for groundwater quality by Eileen A Murphy( Book )

1 edition published in 1987 in English and held by 2 WorldCat member libraries worldwide

State-of-the-art measurement of agricultural pesticide exposures by Richard A Fenske( )

1 edition published in 2005 in English and held by 1 WorldCat member library worldwide

The use of multi-criteria decision analysis in performing alternatives assessment and comparative risk analysis : the case study of codling moth pesticides by Jane Gurnick Pouzou( )

1 edition published in 2016 in English and held by 1 WorldCat member library worldwide

Risk assessment increasingly involves a more systemic evaluation of alternatives and their feasibility, risk, and benefit, in the form of alternatives assessment. However, quantitative, flexible, and standardized methods are still lacking for such analyses. A multi-criteria decision analysis method is proposed here as a framework for comparative risk assessment and alternatives assessment, whereby the feasibility and adoption of alternatives can be assessed and predicted while at the same time evaluating health-health tradeoffs among alternatives. An illustrative case study of occupational exposures to ten different codling moth pesticides is presented. Agricultural consultants to the tree fruit industry were surveyed and interviewed to examine pesticide preferences and the weight of selection criteria. Health impact valuations were also carried out, as the population of participants is uniquely qualified as well-informed about pesticides and having occupational experience with their application, and with pesticide selection. Decision models were constructed based on these results to attempt to predict pesticide use before and after the paradigm shift resulting from the cancellation of one alternative, azinphos-methyl. Monte Carlo simulation was used to assess probabilistic estimates of doses to handlers of the ten pesticides with a variety of associated potential health outcomes. Toxicological data from the pesticide registration process was used to construct benchmark doses for comparison with human dose estimation, producing a probability of exceeding this limit of acceptable dosing. The fraction exceeding the benchmark was used in a decision analysis model revealing health-health tradeoffs among the alternatives
Respiratory and dermal exposure of residents following indoor pesticide applications : final report, 8/1/89-12/31/90 by Richard A Fenske( Book )

1 edition published in 1900 in English and held by 1 WorldCat member library worldwide

Real-time particle monitoring of pesticide drift from two different orchard sprayers by Magali N Blanco( )

1 edition published in 2017 in English and held by 1 WorldCat member library worldwide

Pesticide drift from agricultural spraying is a significant public health concern, affecting workers and surrounding communities. In Washington State, a majority of pesticide-related illnesses and application-related complaints involve drift. This study employed real-time particle monitors to characterize off-target spray drift during a series of orchard spray trials. The study was nested within a larger study that used micronutrients as tracers, and both active and passive sampling methods. Sections of an orchard block were randomly sprayed by alternating two orchard spray technologies - axial fan airblast (AFA) and multi-head fan tower (MFT) - while ten Dylos DC1100 Pro real-time particle counters sampled aerosols generated by the sprayers from various locations in a neighboring block, ranging from 0-122 meters (0-400 ft) downwind. Two meteorological stations collected wind speed, wind direction, temperature and relative humidity throughout the study period. Measurable aerosol drift levels were found at all downwind sampling locations for both sprayers. Significantly greater drift was associated with the AFA than the MFT sprayer below the canopy and at closer distances. Controlling for wind speed and height, the 75th drift percentiles were 123.5 and 43.3 µg/m3 for the AFA and MFT sprayers respectively. Independent of sprayer type and wind speed, the 75th drift percentiles were 29.3 and 17.7 µg/m3 above and below the canopy respectively. In a restricted analysis looking at spray periods and controlling for sprayer type, wind speed and height, every additional foot (0.305 m) away from the sprayer was associated with 0.1 µg/m3 of reduced drift. These results were consistent with results determined by passive sampling methods. Our findings indicate that real-time particle monitoring for pesticide aerosols can serve as an accurate and relatively inexpensive approach to characterizing pesticide drift
On preventing farmworker exposure to pesticide drift in Washington orchards by Edward John Kasner( )

1 edition published in 2017 in English and held by 1 WorldCat member library worldwide

Pesticide drift, or the off-target movement of pesticides, represents a key cause of not only crop damage and economic loss but also occupational and bystander illness. Nationally, drift has been shown to account for 37-68% of pesticide-related illnesses among United States agricultural workers. It remains a public health concern in the Pacific Northwest, especially among tree fruit workers. Unfavorable wind conditions and a lack of worker notification have been identified as leading contributing factors for acute illnesses resulting from occupational drift exposure. No study has systematically examined historical weather data as exposure determinants of drift events with occupationally-related pesticide illnesses. Our first aim seeks to understand the role of wind in pesticide drift events reported to the Washington State Department of Health and prevent such exposures in the future. A majority of drift events reported in Washington over the last two decades resulted from orchard airblast applications. The airblast sprayer has been a standard tool for tree fruit pesticide application technology since its rapid and wide-scale adoption in the 1950s. Over the last 65 years, a desire for more fruit-bearing trees has changed orchard canopies by reducing tree height and canopy volume. As a result, traditional airblast sprayer output no longer matches modern trees and thereby increases drift potential. New engineering controls such as tower sprayers have been promoted as methods to reduce drift, but few studies have examined how much these new technologies reduce worker exposure. While previous field studies have examined the use of metal cation tracers in spray deposition, our second aim evaluates new engineering controls by measuring potential worker exposure to orchard spray drift using novel micronutrient tracer methods. A high priority issue for drift exposure prevention in Washington has been improved communication between farms, handlers, and crew members. Currently, there is no system in place to notify workers or employers of applications that will be taking place on adjacent property. To investigate worker notification as a means to prevent exposure to drift, our third aim reviews existing agricultural notification systems and assesses the feasibility of a farm-to-farm notification system in Washington using interviews with tree fruit industry personnel
Impact of extreme heat on emergency medical services in King County, WA by Miriam Calkins( )

1 edition published in 2014 in English and held by 1 WorldCat member library worldwide

Climate change is projected to have serious long-term consequences for public health. The existing body of literature has largely characterized increases in hospitalization and mortality in relation to extreme heat, but limited research exists characterizing the relationship between extreme heat and emergency medical services (EMS). The primary objective of this research was to assess the impact of extreme heat on health and county resources through the use of high definition meteorological data and EMS call data for King County, WA. Methods: Using EMS records and high-resolution meteorological data for 2007 through 2012, relative risk and time series analyses were conducted for the potential association between extreme heat and EMS calls. Extreme heat was defined as the 95th percentile of average daily county-wide maximum humidex values for Basic Life Support (BLS) EMS response data and the 99th percentile for Advanced Life Support (ALS) EMS response data. The analysis focused on health outcomes and level of transportation for all ages as well as six age categories and assessed for duration and cool down effects. Additional analyses of the impacts on cost were conducted. Results: For all ages, all causes, there was an 8% increase in BLS calls on a 95th percentile heat day (29.7 °C) compared to a non-heat day and a 14% increase in ALS calls on a 99th percentile heat day (36.7 °C) compared to a non heat day. The time series analyses demonstrated a 6.6% increase in BLS calls per degree increase above the statistically optimal threshold of 40.7 °C humidex and a 3.8% increase in ALS calls per degree increase above the optimal threshold of 39.7 °C humidex. Analysis by age category consistently identified significant results in 15-44 and 45-64 year olds, although 0-4 year olds and 65+ age groups also contained significant increases in risk for some health outcomes. This research captured the volume of cases that may not be serious enough to warrant hospitalization, but still demand significant county resources, using EMS calls as a surrogate for adverse health outcomes. All-ages increases in risk and age-specific health effects were consistent with the limited existing research on EMS calls and heat, however the presence of inceases in risk for relatively young populations was markedly different from regional effects demonstrated in more severe health metrics
Indoor air levels of chlordane in residences in New Jersey by Richard A Fenske( Book )

1 edition published in 1987 in English and held by 1 WorldCat member library worldwide

moreShow More Titles
fewerShow Fewer Titles
Audience Level
Audience Level
  Kids General Special  
Audience level: 0.44 (from 0.42 for Fluorescen ... to 0.97 for State-of-t ...)

Alternative Names
Fenske, Richard Arnold

English (17)