+
Severe Winter Ozone Pollution Linked to Petrochemical Emissions
ECONOMY & POLICY

Severe Winter Ozone Pollution Linked to Petrochemical Emissions

A recent study has revealed that severe wintertime ozone (O3) pollution, typically associated with warm weather, is being driven by alkene emissions from local petrochemical industries in Lanzhou, China. Researchers from the Hong Kong Polytechnic University discovered alarming O3 levels in the cold winter months of January 2018, with concentrations exceeding 100 parts per billion (ppbv) and peaking at an alarming 121 ppbv. This is contrary to the traditional belief that O3 pollution mainly occurs during hot weather with strong solar radiation.

The team used an advanced photochemical box model to simulate photochemical smog at the urban scale, identifying alkene ozonolysis as the main contributor to O3 formation. Unlike the typical radical sources initiated by sunlight, the alkene reaction occurs without sunlight and produces reactive radicals that accelerate O3 production. Alkenes, particularly trans/cis-2-butene and propene, contributed to nearly 90% of the O3 levels during the pollution episodes.

The study highlights the need for targeted mitigation strategies, suggesting that reducing alkene levels by 28.6% or nitrogen oxides by 27.7% during early afternoon hours could significantly reduce O3 levels. The authors stressed the importance of taking action in industrial regions to reduce these harmful emissions.

Long-term exposure to high O3 levels can damage respiratory tissues, causing inflammation, irritation, and exacerbating asthma symptoms, posing serious health risks to the local population.

A recent study has revealed that severe wintertime ozone (O3) pollution, typically associated with warm weather, is being driven by alkene emissions from local petrochemical industries in Lanzhou, China. Researchers from the Hong Kong Polytechnic University discovered alarming O3 levels in the cold winter months of January 2018, with concentrations exceeding 100 parts per billion (ppbv) and peaking at an alarming 121 ppbv. This is contrary to the traditional belief that O3 pollution mainly occurs during hot weather with strong solar radiation. The team used an advanced photochemical box model to simulate photochemical smog at the urban scale, identifying alkene ozonolysis as the main contributor to O3 formation. Unlike the typical radical sources initiated by sunlight, the alkene reaction occurs without sunlight and produces reactive radicals that accelerate O3 production. Alkenes, particularly trans/cis-2-butene and propene, contributed to nearly 90% of the O3 levels during the pollution episodes. The study highlights the need for targeted mitigation strategies, suggesting that reducing alkene levels by 28.6% or nitrogen oxides by 27.7% during early afternoon hours could significantly reduce O3 levels. The authors stressed the importance of taking action in industrial regions to reduce these harmful emissions. Long-term exposure to high O3 levels can damage respiratory tissues, causing inflammation, irritation, and exacerbating asthma symptoms, posing serious health risks to the local population.

Next Story
Products

Clean Anywhere

Hindware’s Portable Bidet offers effortless hygiene with dual spray modes, 180° adjustable nozzle, smart timer, and waterproof design. Compact and travel-ready, it’s ideal for travellers, new mothers, and post-surgical care—bringing comfort and cleanliness on the go. Contact: Hindware Website: https://hindware.com/..

Next Story
Products

Sustainable Elegance

Stone Art presents a unique collection of petrified wood washbasins, crafted from fossilised wood transformed over millions of years. Each basin is a one-of-a-kind piece, retaining the natural grain, texture, and strength of ancient trees turned to stone. Ideal for luxury interiors, boutique hotels, and wellness spaces, these sculptural basins blend raw geology with refined function. Contact: Stone Art Website: www.stoneart.asia..

Next Story
Products

Sleek Kitchen Solutions

Häfele has launched the Profin range of aluminium profiles for open, modern kitchens. The collection includes Gola Profiles, Stack Modular Shelving, Rail Door Profiles, and Strike Shelving System—all designed for seamless integration and contemporary appeal. Available in five finishes—Silver, Graphite, Gold, Rose Gold, and Dark Bronze—the profiles offer both subtle elegance and striking contrast.Contact: HäfeleWebsite: www.hafeleindia.com/en/ ..

Advertisement

Advertisement

Subscribe to Our Newsletter

Get daily newsletters around different themes from Construction world.

STAY CONNECTED

Advertisement

Advertisement

Advertisement

Advertisement

Talk to us?