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NOISE ENGINEERING DESIGN
When hearing protection and administrative controls cannot be employed to reduce noise exposures, EI’s engineering team assists our industrial clients in the identification and design of noise engineering controls. Engineering controls for excessive noise can be developed for isolated pieces of manufacturing equipment or entire industrial process lines. Initial steps require performing sounds level facility surveys and personnel noise dosimeter monitoring of manufacturing personnel by experienced industrial hygienists. Noise monitoring results are utilized to determine specific sources of excessive noise, as well as the mechanism of sound generation/propagation emitted by the excessive noise source. Multiple sources of noise will subsequently be “rank ordered”, which will allow for a range of possible engineering controls, typically addressing the loudest sound sources first. EI’s professionals segregate excessive noise sources into two distinct classes, vibrational noise and noise turbulence.
Once all specific noise sources are identified, EI utilizes the following logical approach to determine the optimal systems to reduce/control excessive noise:
- Substitution of equipment (fundamental first step)
- Categorization of source into vibrational noise and turbulence-based noise
- Reduction of driving forces which cause excessive noise
a. Decreasing machine speed
b. Maintaining dynamic balance
c. Provide vibrational isolation
d. Increasing impact duration, while reducing the force of impact
- Reduce response of vibrating surfaces
- Reduce area of vibrating surfaces
- Reorienting directional noise sources
- Reduction in velocity of fluid flow (air ejection systems, valves, vents and piping)
- Provide sound absorption alternatives
- Design and installation of equipment and personnel noise enclosures
Let EI’s team of industrial hygienists and engineers work collaboratively to identify and provide cost-effective engineering solutions aimed at reducing exposure of your workforce to excessive noise.
IN NEED OF OUR SERVICES?
EI’s commitment to service has been amply demonstrated on past projects. Yet again, this commitment has been clearly demonstrated by nimble agility of short notice staff scheduling. The dedicated professionals of The EI Group have exceeded our expectations.
If you had a release of a hazardous air pollutant, you would have to notify your authorizing environmental agency under various rules, Federal RMP (112(r)), Title V, or maybe a State Air Toxics regulation. You might even be required to notify the National Response Center (NRC). As of March 23, 2021, you can now add the Chemical Safety Board (CSB) to your “must call” list.
When President Biden set a bold goal of re-opening schools in his first 100 days in office, public health experts quickly pointed out that regular COVID testing would have to be an integral part of the plan. While a questionnaire and temperature scan may have been provided peace of mind and screened some potential cases in 2020, more stringent measures are needed for student and teacher populations. Enter Rapid Antigen Testing (RAT).
Is Your Building Prepared for Post COVID Re-Occupancy? Control Measures to Reduce Airborne Transmission in the Workplace
As we move through this global pandemic, many of the buildings that we routinely entered pre-pandemic are now partially occupied or remain vacant. Buildings such as schools, churches, restaurants, and commercial office spaces have been significantly impacted by state and local restrictions aimed at mitigating COVID-19 transmission.
During 2020, the most effective method of screening employees who were potential carriers of SARS-CoV2 was the administration of a CDC recommended questionnaire, coupled with a temperature scan from a non-contact thermometer. The COVID questionnaire was utilized to identify those workers who were experiencing COVID symptoms or those employees who had potential contact with individuals who were COVID carriers.
On January 7, 2021, the US Environmental Protection Agency (EPA) published its intent to revise the 2001 dust-lead clearance levels (DLCL) for pre-1978 constructed residences and child occupied facilities. The new change in the standards will go into effect in the first quarter of 2021. It has been over two decades since the EPA has made a revision to these standards.
As we move into 2021 and the new Biden administration, we can, as with every new administration, expect to see changes. This includes changes in the areas of workplace safety and health as well. Although still a bit early, we can make a few safe assumptions based on discussions coming out of Washington.
Just about any facility that takes raw materials to make something has unwanted byproducts in the form of air emissions, residuals in wastewaters, and materials disposed of as solid and sometimes hazardous wastes. Federal, state, and local rules govern handling, management, and control of pollution from these and other “discharges”. Determining which rules and requirements apply and keeping up with the controls, monitoring, testing, and recordkeeping are not always straightforward tasks.
Onsite Occupational COVID Testing Methodologies -Breaking the Chain in 2021 During Vaccination and Post Vaccination
During 2020, occupational screening to identify potential COVID-19 carriers was limited to monitoring employee body temperature in conjunction with administration of a questionnaire aimed at identifying employees who exhibited coronavirus symptoms (headache, loss taste/smell, sore throat, cough or gastrointestinal issues) or workers who had close contact with a potential coronavirus carrier.
Section 313 of the Emergency Planning and Community Right-to-Know Act (EPCRA) requires owners/operators of facilities, with 10 or more full-time equivalent employees with covered operations meeting certain North American Industry Classification System (NAICS) codes, to submit a Toxic Release Inventory (TRI) Form A or Form R for each TRI-listed chemical manufactured, processed, or otherwise used in quantities above reporting thresholds by July 1 each year.
A roofer was inspecting along the edge of a roof three stories above the ground in preparation for replacing damaged shingles. His foot slipped and, having no fall protection, he fell to the concrete sidewalk below sustaining fatal head injuries. The ensuing OSHA investigation resulted in no citations because there had been no violation committed.