Displaying items by tag: Dust

China: Authorities in the province of Hunan have identified a cement plant as the source of thallium contamination in the Leishui River following a botched demolition at the end of 2024, according to Sixth Tone news.

Yongxing County officials said that rainfall had washed thallium-laden dust from a dismantled kiln into the river. Levels peaked at 0.13μg/L, exceeding the national standard of 0.1μg/L, but have since returned to safe levels. The nearby city of Chenzhou is reportedly a hub for non-ferrous metal mining and processing, and a number of Chinese cement plants have begun to process industrial solid waste in recent years. According to Peng Yingdeng, a researcher at the Ministry of Ecology and Environment, this method is a common approach for hazardous waste disposal, but can lead to high concentrations of thallium salts in the kiln’s residue. The owner of the plant, Hunan Liantian Cement, added solid waste management to its list of businesses in September 2024.

The local government has despatched teams to apply chemical treatments to the affected areas, with water quality since returning to safe levels. Local residents’ drinking water was reportedly not affected.

India: Dalmia Cement (Bharat) plans to expand its cement plant in Mylavaram, Andhra Pradesh. The producer will invest US$321m to to more than double the plant’s clinker capacity from 4.6Mt/yr to 12.6Mt/yr, its cement grinding capacity from 2.6Mt/yr to 7.6Mt/yr and its waste heat recovery capacity from 12MW to 28MW.

The Andhra Pradesh Pollution Control Board will hold a public hearing on 27 March 2025 over the plans, the New Indian Express newspaper has reported. Local residents have raised allegedly ‘unaddressed’ issues, including disruptions to watercourses, increased dust pollution and possible structural damage from increased blasting.

India: A committee has identified environmental compliance failures at the Adani-owned ACC cement plant in Barmana, Bilaspur district, according to The Indian Express.

The inspection conducted revealed inadequate dust emission controls, missing three-layer tree plantation and deficient truck-tyre washing systems at the plant. Only one kiln was operational at 40% capacity during the visit, as the plant is undergoing maintenance from 3 January to 8 February 2025. Therefore, the committee has requested an additional eight weeks to submit its report, so that it may conduct a more thorough investigation once the plant is operating at full capacity.

The Himachal Pradesh Pollution Control Board has previously imposed a US$149,000 fine on the plant in April 2022 for air quality breaches and untreated water discharge, with at least seven complaints lodged against the plant by local residents over the last three years.

Iraq: Iraq’s largest cement plant in Kirkuk has resumed operations after a shutdown in November 2024 due to environmental non-compliance and an issued fine of US$343,000. Upgrades include a new dust control system and pollution monitoring equipment. Residents of nearby Lailan have previously protested against the plant, stating that the pollution caused adverse health effects and poisoned local crops, according to Intellinews. Following inspections, the factory now reportedly meets relevant pollutant standards.

Kenya: Mining and Blue Economy Cabinet Secretary Hassan Ali Joho has ordered the closure of the Simba Cement plant in Kilifi County due to pollution concerns. Residents have reported issues from stone blasting and dust, with one resident reporting that early morning blasting has caused ‘cracks’ in their house and exposed families to respiratory diseases, according to the Kenyan Post newspaper. It was also reported that the company has allegedly displaced residents to expand its mining operations.

US: The Portland Cement Association (PCA) has voiced its concerns over the Environmental Protection Agency (EPA)'s newly finalised standard for particulate matter 2.5 (PM2.5). The new standard reduces the level of particulate matter below 2.5μm diameter permitted in flue gas emissions to 9μg/m³ from 12μg/m³. The PCA says that it is concerned that the new rule may restrict US cement producers’ operations and ‘further complicate’ their efforts to achieve net zero emissions by 2050.

President and CEO Mike Ireland said “This new rule strikes at the heart of the US cement industry's ability to deliver on the Biden Administration's infrastructure goals, as it would lead to fewer hours of operation at plants, which would mean layoffs, as well as less American cement and concrete at a time when the country needs more.” He added “The previous EPA standard on particulate matter emissions — arrived at by government officials working with industry — significantly drove down those emissions by 37% over the last 20 years. This downward trend would have continued without the new standard imposed."

However, EPA administrator Michael Stanley Regan said that the updated standard will prevent 4500 premature deaths and 290,000 lost workdays annually by 2032. Regan said “We do not have to sacrifice people to have a prosperous and booming economy.”

UK: Aggregate Industries has successfully removed gas duct sections from the electrostatic precipitation filter at its Cauldon cement plant in Staffordshire. This will make way for the installation of a new CTP Team process kiln bag filter, following an annual shutdown.

Cauldon plant capital expenditure manager Mark Powling said “The new bag filter not only provides the best available technology, but will enable the Cauldon plant to optimise its plant performance, driving its decarbonisation and alternative fuel strategies. Thanks to the project team for their efforts and hard work to date.”

Egypt: Arabian Cement Company is replacing electrostatic precipitators at its Ain Sokhna cement plant with bag filters. Arab Finance News has reported that the project will commence in two phases. Arabian Cement Company will first install the filters in Line 1 of the plant, before subsequently installing them in Line 2. Italy-based air pollution control specialist Redecam Group will execute the upgrades.

India: The Saffron Growers Association (SGA) has said that cement plants in Kashmir are causing dust pollution, to which the association attributed the decline of the local saffron industry. Down to Earth News has reported that the SGA alleges that the state’s traditional crop has ceased to be profitable because of extra costs arising from the fall of dust during flowering season. The association added that pollutants such as nitrous oxides (NO_x) and sulphur dioxide (SO₂) can also affect saffron’s growth.

The SGA called on authorities to regulate the construction of cement plants and their emissions more closely.

Canada: Residents of Exshaw and Lac des Arcs, Alberta, near Lafarge Canada’s Exshaw cement plant, have filed a lawsuit over allegedly increasing dust emissions from the plant. Postmedia Breaking News has reported that law firm Napoli Shkolnik Canada said that dust spills occur ‘regularly.’ The plant’s operations allegedly also blacken snow on the ground in the area and have caused ‘severe’ odours and ‘violent’ tremors.