Overview

We help factories and business facilities implement effective odor control measures to protect the living environment of surrounding communities. Facilities that receive odor complaints are required to take appropriate corrective actions in accordance with the Offensive Odor Control Act.

The purpose of the Offensive Odor Control Act is to regulate offensive odors generated by business activities at factories and other facilities, promote odor control measures, preserve the living environment, and protect public health. The occurrence of odor complaints indicates that the living environment has been adversely affected and may constitute a violation of the Act.

However, odor control is highly complex. It requires accurately understanding the current situation, identifying the source and principal odor-causing substances, and selecting the most effective mitigation methods. With advanced analytical technologies and extensive experience in odor investigations, we provide objective, third-party evaluations and recommend measures with demonstrable effectiveness.

Typical Applications

Our consulting services are commonly used in the following five situations.

Odor complaints have occurred, but you do not know how to resolve the issue, and even the local authorities cannot recommend an effective solution.

Please contact us. We combine on-site investigations with advanced analytical techniques to propose effective solutions.

An odor control system has been installed, but complaints continue, and you are unsure whether the equipment is performing effectively.

Please contact us. Installing deodorization equipment is only the beginning of the process. We evaluate system performance and recommend optimal operating conditions and maintenance procedures to maximize effectiveness.

You would like to install an odor control system but do not know which technology is appropriate.
You are also unsure where the deodorization equipment should be installed because the odor source has not yet been identified.

Please contact us. We identify odor sources through on-site inspections and analytical investigations and recommend the most suitable deodorization system.

You would like us to recommend a deodorization equipment manufacturer.

Please contact us. We can introduce reliable manufacturers appropriate for your needs.

You would like to estimate how odor levels and the surrounding environment will improve after implementing countermeasures.

Please contact us. We can perform simplified atmospheric dispersion calculations based on emission source data.

Investigation & Analysis Process

The typical investigation and consulting process is outlined below.

Step 1

Assessment of the Current Situation

Step 2

Proposal and Implementation of Investigations

Step 3

Reporting of Investigation Results and Countermeasure Proposals

Features

Our objective is not simply to determine compliance with regulatory standards.

Many environmental analyses focus solely on determining whether hazardous substances comply with regulatory limits. Similarly, odor investigations often target only the 22 designated odor substances for which analytical methods and regulatory standards have been established. However, odor complaints are frequently caused by compounds outside these regulated substances, making identification considerably more challenging.

We combine advanced instrumental analysis—including thermal desorption GC/MS for comprehensive analysis of trace-level compounds and sniffing GC/MS, which enables analysts to evaluate odor characteristics directly—with various sensory evaluation techniques to accurately identify the substances responsible for offensive odors and unusual smells.

In cases where deodorization equipment is to be introduced, it is also important to identify substances that may not contribute directly to odor but could reduce equipment performance or interfere with treatment efficiency.

We are independent of deodorization equipment manufacturers.

When odor control equipment is required, we can recommend appropriate treatment technologies and introduce multiple reliable manufacturers based on the characteristics of the odor source.

Experienced Specialists

Our team includes not only certified Odor Assessors who conduct accurate odor investigations and analyses, but also certified Odor & Fragrance Environment Advisors who are qualified to develop practical and effective odor control solutions based on analytical findings.

*An Odor & Fragrance Environment Advisor is a certified professional recognized by the Japan Association on Odor Environment. Certification is awarded to qualified Odor Assessors who possess extensive knowledge and practical experience in odor and fragrance environmental management.

Case Studies & Experience

● Installation of regenerative thermal oxidizers (RTOs) for waste incinerators at recycled paper plants, and activated carbon deodorization systems for waterproof sheet manufacturing facilities

● Improvement of paint spray efficiency and proposal of regenerative thermal oxidizers for a drum manufacturing company

● Proposal of methyl mercaptan reduction measures utilizing an existing scrubber system for a major paper manufacturer

● Installation of direct-fired deodorization equipment for a resin-based building materials manufacturer

● Identified wastewater treatment facilities as the source of odor complaints at a major beverage manufacturer,
　provided improvement recommendations, and conducted follow-up investigations to verify the effectiveness of implemented measures

● Similar consulting experience for major bakery and food processing companies

● Proposal of activated carbon deodorization systems for a major detergent manufacturer

● Extensive experience proposing daily operational improvements to reduce odors for various small-scale businesses,
　including composting facilities, animal bone processing plants, and fish meal manufacturers