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About (H₂S)Leakage : The Lethal Crisis Behind the Rotten Egg Odo

2025-06-30

I. The Dual Faces of H₂S: Coexistence of Warning and Extreme Toxicity

Hydrogen sulfide (H₂S) has a unique "rotten egg smell," yet it is also a highly toxic neurotoxin. It can be detected by the sense of smell at low concentrations (0.13ppm), but high concentrations (above 1000ppm) quickly paralyze the olfactory nerves, causing poisoning without awareness. Its explosive range is 4.3%-46%, commonly found in the following scenarios:

High-Risk Industry List:

Industry Type

Typical Scenarios

Risk Level

Petrochemical

Crude oil extraction, sulfide reactors

★★★★★

Wastewater Treatment

Sewer dredging, anaerobic sludge tanks

★★★★☆

Food Processing

Curing workshops, biogas pond maintenance

★★★☆☆

II. Poisoning Mechanism and Concentration-Hazard Comparison Table

Concentration in Air (ppm)

Immediate Reaction

10

Safe threshold for 8-hour exposure

200

Immediate eye and nose irritation, difficulty breathing

500

Possible pulmonary edema and coma within 30 minutes

>1000

Instant respiratory arrest, "electrocution-style" death


III. Three-Dimensional Protection Solutions:

Monitoring + Management + Technological Innovation

1. Hardware Equipment: Building the First Line of Defense

 Portable Champion — MST-101 Portable Single-Gas Detector 
▶ 0-100ppm wide-range detection, response time <15 seconds
▶ Continuous use for over 10 hours when fully charged

2. Operation Specifications: Details Determine Safety

  • Adhere to the principle of "ventilate first, detect next, operate last" before entering confined spaces.

  • Equip with positive-pressure air respirators; single-person entry into high-risk areas is strictly prohibited.


3. Cutting-Edge Technology: 

MaiYa's New-Generation Electrochemical Sensor

 MST-4H2S-100 Hydrogen Sulfide Detection Gas Senso
 Anti-cross-interference technology: Excludes interference from gases like CO, H₂, NH₃, CO₂, and C₂H₆O.
 Miniaturized design: Dimensions of only 20mm×16.7mm, compatible with 4-series detectors.
 High sensitivity, high precision, linear output, anti-interference, and unique anti-leakage structure.

IV. MaiYa Sensor: Guardian of Methane Safety

As a new technology enterprise specializing in gas detection for years, MaiYa has always safeguarded safety through technological innovation:

  • Full-scenario coverage

    : Products include portable, online, and composite detection equipment suitable for industrial, municipal, and household scenarios.
  • Authoritative certifications

    : Approved by ATEX, IECEx, China explosion-proof, and other certifications, with stable and reliable performance.
  • Customized services

    : Provide one-stop solutions from scheme design and equipment installation to personnel training, helping enterprises build intrinsic safety systems.


Risk Warning: The golden rescue time for hydrogen sulfide poisoning is only 4 minutes. It is recommended to equip emergency resuscitators in places prone to sulfide generation. Follow MaiYa Sensor to unlock more gas safety protection tips!