tarting in 2025, calculating environmental protection fees for air emissions will no longer be a simple legal obligation, but a technical challenge that many manufacturing businesses are struggling to handle. Especially for facilities that emit industrial air pollutants, the new regulations under Decree 153/2024/NĐ-CP set higher requirements for monitoring and verifying emission data.
So what should businesses prepare to calculate air emissions fees accurately and sufficiently? Let's explore this topic with Nanoen in the article below.
1. Two Types of Air Emissions Fees Businesses Must Understand
According to Decree 153/2024/NĐ-CP, environmental protection fees for air emissions include:
Fixed Fee:
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Applicable to: Facilities discharging industrial air emissions and required to obtain an environmental permit
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Payment schedule: Annually or quarterly
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Deadline:
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January 31 every year (for facilities not required to perform air emissions monitoring)
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Or the 20th day of the first month of the following quarter (for facilities subject to emissions monitoring)
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Fee amount: 3,000,000 VND/year
Variable Fee:
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Applicable to: Facilities discharging industrial air emissions that are required to obtain an environmental permit and perform air monitoring
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Payment schedule: Quarterly
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Deadline: 20th day of the first month of the following quarter
2. The Real Challenge: It’s Not Just About Paying – It’s About Having a Valid Basis for Calculation
According to the new formula, the variable fee for each pollutant in an emissions stream (i) is calculated as follows:
In reality, businesses face multiple difficulties in performing these calculations correctly:
2.1 Emission Flow Rate: The Difference Between m³/h and Nm³/h
One common mistake is confusing m³/h (cubic meters per hour) with Nm³/h (normal cubic meters per hour), though they are completely different:
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m³/h: Actual flow rate measured at the emission point, affected by current temperature and pressure
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Nm³/h: Standardized flow rate adjusted to standard conditions (0°C, 1 atm)
Most environmental permits only list m³/h, and businesses often lack the formula or equipment needed to convert this value to Nm³/h correctly – leading to errors in fee calculation.
2.2 Lack of Emission Time Data
Calculating emissions fees also requires detailed records of actual operating hours of emission sources. Without a properly maintained operation log or automatic recording system, businesses may be unable to provide sufficient proof during inspections.
In addition, the applicable discharge time depends on when the facility began operations:
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Before January 5, 2025: Count from February to the end of the quarter/year
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After January 5, 2025: Count from the month operations began
2.3 Valid Monitoring Data and Compliant Stack Design
For monitoring data to be legally valid and reflect actual operations, businesses must ensure that their emission stacks and sampling locations comply with technical standards. According to Circular 10/2021/TT-BTNMT, stacks must meet requirements regarding:
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Stack diameter
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Height above ground
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Sampling port location
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Safe sampling platforms (one of the most critical factors to ensure valid and safe data collection)
If the stack does not meet standards, the monitoring results may be considered invalid and rejected during regulatory review.
???? More details: Technical Requirements for Air Emissions Monitoring
Besides, if sampling is done when the facility is not operating at full capacity, the measured values might not reflect actual emissions – potentially skewing the fee calculation.
Therefore, air monitoring must be strategically planned, from selecting the right time and location to working with a qualified monitoring agency.
3. Nanoen’s All-in-One Solution: From Monitoring to Fee Calculation
As a trusted environmental consulting firm working with manufacturers across Vietnam, Nanoen understands that the real concern is not only paying the fee, but doing so accurately, completely, and on time – with a solid data foundation to back it up.
To address these challenges, Nanoen provides an all-in-one service package for air emissions monitoring and fee calculation:
1. Periodic Air Emissions Monitoring
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Developing a monitoring plan aligned with the facility’s operational schedule
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Conducting sampling and measurement of key parameters (Dust, NOx, SOx, CO) in compliance with current QCVN standards
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Issuing certified and truthful monitoring reports that can be used directly for emissions fee calculations and reporting
Especially: Nanoen supports emissions fee calculation for clients based on the freshly collected monitoring data, following the official formula under Decree 153/2024/NĐ-CP.
This helps businesses:
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Avoid mistakes due to incorrect units or calculations
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Estimate fees immediately after monitoring
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Complete reports correctly and submit them on time
2. Ongoing Regulatory Support
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Monitor quarterly/yearly emissions fees
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Update changes in state regulations
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Minimize risks of fines due to incomplete declarations
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Be ready to respond to inspections and audits
With a team of experienced consultants and a transparent process, Nanoen helps businesses take control of their emissions data, plan ahead, and fulfill their legal obligations confidently.
Your Trusted Environmental Consultant in the Mekong Delta
Nanoen has built long-term trust with clients thanks to our integrity, dedication, and responsibility in every product and service we offer. We are committed to standing by your business to ensure not only full legal compliance but also sustainable development.
Let Nanoen be your reliable partner in overcoming environmental challenges and building a greener future.
Contact us today for free consultation and the most effective solution for your business!
Nanoen
NANO ENVIRONMENT TECHNOLOGY - CONSTRUCTION LIMITED LIABILITY COMPANY
Address: 661E/29, Vo Van Kiet Street, Long Hoa District, Can Tho City
Hotline: 0941.777.519 - 0907.803.678 - 0907.686.717
Email: nanoentech@gmail.com
Facebook: www.facebook.com/nanoentech
