In industries such as food production, supplement blending, and pharmaceutical manufacturing, airborne vitamins can become an inhalation hazard. While Vitamins A and D3 are beneficial when consumed, breathing in concentrated dust can irritate the respiratory system and contribute to overexposure. Routine monitoring helps you identify elevated airborne levels, maintain internal safety standards, and protect workers from unnecessary health risks. Effective control of inhalable vitamin dust also supports consistent product quality and regulatory readiness.
Exposure Limits and Guidance Values
As of 2016, no official occupational exposure limits for Vitamin A (Retinyl Acetate) or Vitamin D3 (Cholecalciferol) have been established in North America. However, practical guidance can be derived from Health Canada’s Tolerable Upper Intake Levels (UL) and Reference Daily Intake (RDI). Based on these benchmarks, reasonable upper estimates for airborne concentrations are:
- Vitamin D3: 5–10 µg/m³
- Vitamin A: 50–100 µg/m³
These values align with internal occupational exposure limits adopted by select industries (confidential document, 1998) and provide a useful framework for evaluating worker exposure.
Laboratory Method Developed by LCS Laboratory
LCS Laboratory Inc. has developed a validated and reliable analytical method for the simultaneous measurement of Vitamin A and Vitamin D3 in industrial air samples. Our method is optimized for accuracy, stability, and low‑level detection, allowing both vitamins to be extracted and analyzed from a single filter. This approach reduces sampling costs, simplifies logistics, and ensures consistent analytical performance.
Sampling Procedure
Airborne vitamins are collected as inhalable dust using 25 mm PTFE filters with a pore size of 0.45 to 2 microns. Filters are operated at a standard flow rate of 2 L/min, making the method compatible with common industrial hygiene sampling pumps. Because both vitamins can be captured on the same filter, the procedure is efficient and well‑suited for routine monitoring programs or targeted exposure investigations.
Detection Limits
Our validated reporting limits ensure reliable quantification even at low airborne concentrations:
- Vitamin A: 10 µg/sample
- Vitamin D3: 2 µg/sample
These detection capabilities support compliance assessments, exposure investigations, and internal quality assurance programs. To learn more about Vitamin A and D3 air sampling, request shipping instructions, or discuss your monitoring needs, please visit our Contact Us page.
