Sources of Air Emissions in Health and Personal Care Products
Manufacturing Processes
The Health and Personal Care Products (HPCP) manufacturing industry is a
significant contributor to air emissions due to its chemical-intensive operations,
including the use of solvents, volatile compounds, and powders. These
emissions arise during blending, heating, packaging, and cleaning processes.
The major pollutants include volatile organic compounds (VOCs), particulate
matter (PM), combustion by-products, and fugitive emissions. The following
sections outline the key sources and corresponding mitigation strategies.
1. Volatile Organic Compounds (VOCs)
Sources:
 • Solvent evaporation during mixing, blending, and filling processes.
 • Storage tanks, transfer lines, and open containers.
 • Use of alcohol-based substances and synthetic fragrances.
Mitigation Measures:
 • Use low-VOC or VOC-free raw materials.
 • Install closed mixing and blending systems.
 • Implement vapor recovery units and activated carbon filters.
 • Use thermal oxidizers for VOC destruction.
 • Seal storage tanks and install pressure/vacuum relief valves.
2. Particulate Matter (PM)
Sources:
 • Powder handling, grinding, and spray drying.
 • Tableting and packaging of powdered products.
Mitigation Measures:
 • Employ local exhaust ventilation (LEV) at dust-generating points.
 • Use enclosed powder transfer systems.
 • Install HEPA filters or baghouse dust collectors.
 • Conduct regular housekeeping and dust removal.
 • Automate material handling to reduce manual exposure.
3. Combustion Emissions
Sources:
 • Boilers and steam generation units.
 • Diesel-powered backup generators.
Mitigation Measures:
 • Switch from diesel to natural gas or electricity where feasible.
 • Install low-NOx burners and maintain combustion efficiency.
 • Perform regular maintenance of burners and heat exchangers.
 • Use renewable energy sources such as solar steam systems.
4. Fugitive Emissions
Sources:
 • Leaks from valves, seals, pumps, and flanges.
 • Spills during manual chemical transfer.
Mitigation Measures:
 • Implement a comprehensive Leak Detection and Repair (LDAR) program.
 • Use double mechanical seals and low-emission valve technology.
 • Install closed-loop loading/unloading systems.
 • Conduct frequent equipment inspections and maintenance.
5. Aerosol Propellant Emissions
Sources:
 • Use of hydrocarbons (propane, butane) as aerosol propellants.
Mitigation Measures:
 • Substitute with inert propellants like nitrogen or compressed air.
 • Optimize valve and canister design to reduce propellant usage.
 • Maintain tight control over pressurization processes.
 • Enclose aerosol filling systems to prevent leaks.
6. Cleaning and Sanitation Emissions
Sources:
 • Use of volatile disinfectants (e.g., alcohols, chlorine compounds) during
cleaning.
Mitigation Measures:
 • Adopt closed Clean-In-Place (CIP) systems.
 • Replace volatile agents with aqueous or enzymatic alternatives.
 • Schedule cleaning during low-occupancy hours to reduce exposure.
 • Use minimal quantities of volatile cleaners with high efficiency.