E Instruments International, LLC

Critical Monitoring of Forklift Emissions and Warehouse Ambient Air Quality - Case Study

Courtesy of E Instruments International, LLC

Our team of experts has been hard at work and has just released an industry-leading report detailing Forklift Emissions in Warehouses: The main objectives of this study were to investigate the effects of different engine conditions on exhaust gas emissions and to observe the effect that forklift emissions have on the ambient air quality of the warehouse.                                                                           

Critical Monitoring of Forklift Emissions and Warehouse Ambient Air Quality

The study was conducted over a period of 200 minutes. First a baseline was created for a forklift that was off and had not been operated in the last 24 hours. Next the forklift was turned on and was left to idle, meaning that the forklift was stationary and was not under load.  The table below outlines the results.

Forklift Idle – No Load (30 Minute Test)

Exhaust Analysis

Ambient Air Analysis

CO quickly increases from 0 to 0.04%

CO increases from 0 to 1 ppm

HC increases from 0 to ~240 ppm

NO increases steadily from 0 to 0.3 ppm


Next the forklift was put under load for a span of 120 minutes. During the load condition, the forklift technician engaged the forklift engine throttle, putting a load on the engine. The table below outlines the results which indicate that there is incomplete combustion and that if left unchecked, within 4 hours of forklift operation the warehouse may reach the OSHA threshold of 9 ppm of CO.
 

Forklift Idle – Load (120) Minute Test)

Exhaust Analysis

Ambient Air Analysis

CO quickly increases from 0.04% to 0.8%

CO increases steadily from 1 ppm to 4.5 ppm

HC increases from 240ppm to 420 ppm

NO increases steadily from 0.3 ppm to 0.5 ppm

Next the forklift was shut off and the CO and HC emissions decreased back to 0% and 0ppm respectively. Ambient Air Quality on the other hand saw steady decreases in CO and NO2 back to 0.05 ppm and 0.1ppm respectively. This indicates that forklift exhaust is directly related to CO and NO2 levels in warehouse ambient air. 

The Case Study also include Strategies for optimizing Equipment Performance and Worker Safety/Productivity such as:

  1. Monitoring Warehouse Equipment Emissions and Efficiency
  2. Indoor Air Quality Monitoring
  3. Determining the objectives associated with emissions and performance required for Forklifts, Burnishers, and other equipment in the premises
  4. Implementing a Long-Term Air Quality Optimization Strategy (Air Quality/Movement/Replacement) to Avoid Toxic Gas Build Up

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