Estimated 1080 dose rate for the M-44 ejector for the control of red foxes (Vulpes vulpes)

2002 ◽  
Vol 29 (3) ◽  
pp. 291 ◽  
Author(s):  
C. A. Marks ◽  
F. Gigliotti ◽  
F. Busana
Keyword(s):  
United States ◽  
Occupational Exposure ◽  
Lower Risk ◽  
Vulpes Vulpes ◽  
Occupational Safety ◽  
The United States ◽  
Red Foxes ◽  
Wildlife Species ◽  
Fox Control ◽  
Target Effects

Recent studies have suggested that bait movement and caching by foxes (Vulpes vulpes) may increase the potential risk of off-target effects from 1080 meat baits close to urban habitats. The M-44 ejector is an alternative way to deliver 1080 to foxes that will eliminate bait movement and caching. Whilst the M-44 ejector has been used for the control of foxes using cyanide in the United States, we investigated its use with 1080 as a toxicant. Exotic eutherian carnivores are generally more sensitive to 1080 than are most Australian endemic wildlife species, yet no useful difference in sensitivity to cyanide exists for these groups. The lower risk associated with occupational exposure to 1080 compared with cyanide suggests that it is a more desirable toxicant for fox control. Pen trials were undertaken in order to establish an appropriate capsule dose of 1080 to be used in the ejector. A minimum capsule dose of 2.7 mg of 1080 is estimated to be consistently lethal to foxes weighing up to 8.3 kg. The recommended dose is below the current meat bait dose of 3.0 mg 1080 used in Victoria. This may represent an improvement in occupational safety and a reduction in non-target risk.

Injuries and Occupational Safety

2017 ◽  
Author(s):  
Dawn N. Castillo ◽  
Timothy J. Pizatella ◽  
Nancy A. Stout
Keyword(s):  
United States ◽  
Ionizing Radiation ◽  
Occupational Safety ◽  
Occupational Injury ◽  
Occupational Injuries ◽  
Mechanical Energy ◽  
The United States ◽  
Hierarchical Approach ◽  
Safety Hazards ◽  
Injury Control

This chapter describes occupational injuries and their prevention. It describes in detail the causes of injuries and epidemiology of injuries. Occupational injuries are caused by acute exposure in the workplace to safety hazards, such as mechanical energy, electricity, chemicals, and ionizing radiation, or from the sudden lack of essential agents, such as oxygen or heat. This chapter describes the nature and the magnitude of occupational injuries in the United States. It provides data on risk of injuries in different occupations and industries. Finally, it discusses prevention of injuries, using a hierarchical approach to occupational injury control.

Health risk assessment of occupational exposure to heavy metals in a steel casting unit of a steelmaking plant using Monte–Carlo simulation technique

2021 ◽  
pp. 074823372110195
Author(s):  
Fatemeh Dehghani ◽  
Fariborz Omidi ◽  
Reza Ali Fallahzadeh ◽  
Bahman Pourhassan
Keyword(s):  
Heavy Metals ◽  
Occupational Exposure ◽  
Environmental Protection Agency ◽  
Steel Casting ◽  
Occupational Safety ◽  
The United States ◽  
Control Measures ◽  
Monte Carlo Simulation Technique ◽  
Safety And Health ◽  
Casting Unit

The present work aimed to evaluate the health risks of occupational exposure to heavy metals in a steel casting unit of a steel plant. To determine occupational exposure to heavy metals, personal air samples were taken from the workers’ breathing zones using the National Institute for Occupational Safety and Health method. Noncancer and cancer risks due to the measured metals were calculated according to the United States Environmental Protection Agency procedures. The results indicated that the noncancer risks owing to occupational exposure to lead (Pb) and manganese were higher than the recommended value in most of the workstations. The estimated cancer risk of Pb was also higher than the allowable value. Moreover, the results of sensitivity analysis indicated that the concentration, inhalation rate, and exposure duration were the most influencing variables contributing to the calculated risks. It was thus concluded that the present control measures were not adequate and further improvements were required for reducing the exposure levels.

The Occupational Safety and Health Act of 1970

1972 ◽  
Author(s):  
Theodore F. Schoenborn
Keyword(s):  
United States ◽  
Coal Mine ◽  
Occupational Safety ◽  
Health And Safety ◽  
The United States ◽  
Occupational Safety And Health ◽  
Health Programs ◽  
Safety And Health ◽  
Health Laws ◽  
Mine Health And Safety

It is a pleasure to be here today to speak to you about the Occupational Safety and Health Act of 1970, which is landmark legislation by any measure applied to it. The Act applies to every employer affecting commerce in the United States and its territories which was not covered by other Federal occupational safety and health laws, such as the Metal and Non-metallic Mine Act, the Federal Coal Mine Health and Safety Act and the Atomic Energy Act of 1954. By 1973 a study is to be completed containing recommendations for combining all Federal occupational safety and health programs. Paper published with permission.

Design Recommendations for Controlling the Jam-Clearing Hazard on Recycling Industry Balers

2005 ◽  
Author(s):  
T. Mick ◽  
K. Means ◽  
J. Etherton ◽  
J. Powers ◽  
E. A. McKenzie
Keyword(s):  
United States ◽  
Laboratory Testing ◽  
Occupational Safety ◽  
The United States ◽  
Operating Conditions ◽  
Occupational Safety And Health ◽  
Hydraulic Pressure ◽  
Design Recommendations ◽  
Recycling Industry ◽  
Safety And Health

Between 1986 and 2002, there were 43 fatalities in the United States to operators of recycling industry balers. Of these fatalities, 29 involved horizontal balers that were baling paper and cardboard (Taylor, 2002). Balers often become jammed while the baling process is occurring, and the only way to remove the jam is manually. This requires an employee to place a limb of their body into the jamming area and remove the material that is causing the jam. While lockout and tagout procedures reduce the risk of hazardous energy being released, they can still be easily bypassed, ignored, or forgotten. Recent efforts to reduce machine-related injury and death involve the development of a control system for these machines that automatically detects hazardous operating conditions and responds accordingly. The system is being developed at the National Institute for Occupational Safety and Health (NIOSH). This system, JamAlert, automatically terminates the power to the machine when a jam is detected. JamAlert detects a jam by observing both the strain that is experienced by the shear bar of the baler and the hydraulic pressure at which the ram is operating. The strain that is experienced by the baler shear bar when a jam is initiated was calculated in this study through laboratory testing and finite element modeling. Design recommendations are presented on how best to tune the JamAlert’s operating program to most effectively control the jam-clearing hazard.

scholarly journals Comparative effectiveness of oral prostacyclin pathway drugs on hospitalization in patients with pulmonary hypertension in the United States: a retrospective database analysis

2020 ◽  
Vol 10 (4) ◽  
pp. 204589402091183
Author(s):  
John W. McConnell ◽  
Yuen Tsang ◽  
Janis Pruett ◽  
William Drake III
Keyword(s):  
United States ◽  
Pulmonary Hypertension ◽  
Confidence Interval ◽  
Lower Risk ◽  
Rate Ratio ◽  
Index Date ◽  
The United States ◽  
Hospitalization Rate ◽  
Hazard Ratio ◽  
Administrative Claims

Two oral medications targeting the prostacyclin pathway are available to treat pulmonary arterial hypertension in the United States: oral treprostinil and selexipag. We compared real-world hospitalization in patients receiving these medications. A retrospective administrative claims study was conducted using the Optum® Clinformatics® Data Mart database. Patients with pulmonary hypertension were identified using diagnostic codes. Cohort inclusion required age ≥ 18 years, first oral treprostinil or selexipag prescription between 1 January 2015 and 30 September 2017 (index date), and continuous enrollment in the prior ≥6 months. Patients who switched index drug were excluded. Follow-up was from index date until the first of end of index drug exposure, end of continuous enrollment, death, or 31 December 2017. Multivariable Cox proportional hazard and Poisson regression were used to compare risk and rate, respectively, of hospitalization associated with oral treprostinil vs. selexipag, adjusting for potential confounders. The study cohort included 99 patients receiving oral treprostinil and 123 receiving selexipag. Mean age was 61 years, and most patients were females (71%). Compared with oral treprostinil, selexipag was associated with a 46% lower risk of all-cause hospitalization (hazard ratio 0.54, 95% confidence interval 0.31, 0.92; P = 0.02), a 47% lower risk of pulmonary hypertension-related hospitalization (hazard ratio 0.53, 95% confidence interval 0.31, 0.93; P = 0.03), a 42% lower all-cause hospitalization rate (rate ratio 0.58, 95% confidence interval 0.39, 0.87; P = 0.01), and a 46% lower pulmonary hypertension-related hospitalization rate (rate ratio 0.54, 95% confidence interval 0.35, 0.82; P = 0.004). This study suggests that selexipag is associated with lower hospitalization risk and rate than oral treprostinil.

IMPACT OF OSHA ON GEOPHYSICAL OPERATIONS

Geophysics ◽  
1972 ◽  
Vol 37 (2) ◽  
pp. 380-380
Author(s):  
Frank Searcy
Keyword(s):  
United States ◽  
Human Resources ◽  
Working Conditions ◽  
Occupational Safety ◽  
District Of Columbia ◽  
The United States ◽  
Occupational Safety And Health ◽  
Safety And Health

The Williams‐Steiger Occupational Safety and Health Act of 1970 has placed new responsibilities on everyone involved in geophysical operations in the United States. This law applies in all 50 states, the District of Columbia, and territories under the jurisdiction of the United States. The declared congressional purpose of the act is “to assure so far as possible every working man and woman in the nation safe and healthful working conditions and to preserve our human resources.”

The fate of dried meat baits laid for fox control: the effects of bait presentation on take by foxes and non-target species, and on caching by foxes

2002 ◽  
Vol 29 (4) ◽  
pp. 371 ◽  
Author(s):  
P. C. Thomson ◽  
N. E. Kok
Keyword(s):  
Western Australia ◽  
Vulpes Vulpes ◽  
Lower Proportion ◽  
Potential Hazard ◽  
Target Species ◽  
Red Foxes ◽  
Mixed Farming ◽  
Radio Transmitters ◽  
Fox Control

Non-toxic, dried meat baits (45 g) containing small radio-transmitters were laid on cleared sandplots in mixed farming and grain-growing areas in Western Australia. Baits were either buried, tethered by wire trace to a hidden peg, or simply laid untethered on the surface. Baits were exposed for 1 night only and new transects were established each day. Data were available on 1521 baits. Red foxes (Vulpes vulpes) visited 23% of plots and took baits from 64% of those visited. Unburied baits (both tethered and untethered) were taken significantly more frequently than the buried baits. Of all baits taken by foxes, 25% were cached. Foxes were more likely to cache buried baits than either tethered or untethered baits. Excluding baits taken to cubs, foxes cached baits 3–380 m (mean 87�m) from their original locations. Some baits were carried to cub dens up to 1.25�km away. The fate of 27�cached baits was monitored for varying periods. Of these baits, 59% were later eaten by foxes, most within 3�days. Non-target species took 3% of the baits on offer. Birds were the most common non-target animals to take baits, and in some cases dropped baits up to 400 m away. In terms of takes relative to visits, most takes by birds were of the untethered baits (88%, cf. 33% for tethered, 17% for buried baits). Compared with other baits, a significantly lower proportion of the untethered baits that were taken by birds was actually eaten. Baits cached by foxes and baits moved by birds represent a potential hazard to farm dogs and vulnerable fauna. Recommendations on bait presentation, distance restrictions, and likely risk to farm dogs and non-target species are discussed.

scholarly journals Use of and Occupational Exposure to Indium in the United States

2013 ◽  
Vol 10 (12) ◽  
pp. 723-733 ◽  
Author(s):  
Cynthia J. Hines ◽  
Jennifer L. Roberts ◽  
Ronnee N. Andrews ◽  
Matthew V. Jackson ◽  
James A. Deddens
Keyword(s):  
United States ◽  
Occupational Exposure ◽  
The United States
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