Simple metrics are developed by which the perceived loudness and C-weighted sound exposure level of minimized sonic booms can be calculated directly from their waveform parameters.
The simple metrics show excellent agreement with more complex loudness level calculations (e.g., by Johnson and Robinson) on the one hand, and with the full C-weighted sound exposure level calculation on the other.
acceptable operator exposure level.
Radio electric exposure level map.
It is noted that there is a lack of exposure-dependent differences in OR within the different FA exposure levels in the different metrics.
The exposure metrics, exposure sources, exposure levels, sample sizes, age of participants, ethnicity of participants, outcome metrics, and consideration of potential confounders vary greatly among the prior epidemiologic studies.
An ecologic study showed an inverse association between district-level exposure metrics (which included public drinking water atrazine levels, acreage of corn planted, and sales of atrazine) and ovarian cancer (Hopenhayn-Rich et al. 2002).
Population-level exposure metrics are required to extend molecular and cellular-level insights to inform risk assessment and decision making (Ankley et al. 2010).
Moreover, we performed a simulation study to explore how the different exposure metrics may influence the exposure levels used in epidemiological studies.
Next, cumulative exposure metrics were calculated as the sum over time of the assigned exposure levels from each NAICS/NOC activity using two weighting schemes.
For these continuous exposure metrics, the highest tertile was further subdivided based on the intracategory median to evaluate associations with NHL across a greater range of exposure levels.
