Displaying items by tag: Dust

US: The Texas Commission on Environment Quality has discarded legal limits on crystalline silica in ready-mix concrete plants’ dust emissions. Commissioner Bobby Janecka said "I am pretty comfortable moving forward and finalising the proposed revision of the standard permit to bring us back to the point we departed from in 2012." He added that the commission had confirmed the decision with analysis from before the previous rule change, which he attributed to a ‘clerical error.’

Ghana: Residents of the McCarthy Hill district in Accra have launched a protest against China-based Empire Cement’s planned McCarthy Hill cement plant. The Daily Guide newspaper has reported that protestors allege that the proposed plant would contaminate water which flows through active salt mines. They have also complained about potential dust emissions from the site. So far the company has broken ground on the project and three silos are in place.

Iceland: Sementsverksmidjan has commissioned engineering company Efla to investigate a dust spill which occurred in early January 2021. The cement importer says that Efla will review its processes, assess impacts and advise on any measures to prevent the recurrence of such an accident.

The company said, “Following the accident, information has also emerged that the incident lasted longer than previously thought. This information has not been confirmed and is new to the company, but could mean that more cement has been released into the atmosphere than had previously been estimated. The cement factory takes this information seriously and will continue to work with Efla and the insurance company to fully analyse the matter.”

Iceland: HeildelbergCement subsidiary Sementsverksmidjan has apologised for an incident which caused cement dust to be released from a silo at its terminal in Akranes. An overflow during loading caused the dust to settle on nearby houses. The company collaborated with fire services, utilities companies and residents to tidy up.

The company said, “The incident yesterday was an accident which did not comply with the policy and will of the company or its owners. The company therefore apologises to all those who suffered inconvenience and will do everything in its power to ensure that accidents of this kind do not recur.”

India: The Tamil Nadu Pollution Control Board (TNPCB) has fined ACC subsidiary Madukkarai Cement US$61,000 for fugitive emissions of clinker and cement dust in mid-2020. The Hindu newspaper has reported that inspections found dust in the village Kurumbapalayam, Coimbatore District, located on the eastern side of the cement plant. An ambient air quality survey in September 2020 revealed higher-than-prescribed particulate volumes.

In addition to paying the fine, the producer must comply with 19 instructions of the TNPCB for air pollution control and monitoring by 7 January 2021.

Zimbabwe: The Environmental Management Agency (EMA) has ordered Lafarge Cement Zimbabwe to stop operations at its integrated Harare plant due to abnormal dust emissions. As part of the order the plant has been requested to notify local stakeholders and the community of any new developments or incident that may affect them, according to the NewsDay newspaper. It will also be required to report daily dust emissions readings to the EMA every two weeks.

The cement producer said it experienced an unexpected surge in dust emissions during a trial of using saw dust as an alternative fuel at the plant between July 30 and 1 August 2020. It added that immediate action was taken to control and contain the emissions and the incident was reported to EMA in line with regulatory requirements.

Fiji: Pacific Cement has been forced to suspend production at its 0.1Mt/yr-capacity integrated Lami cement plant in Rewa Province following the issue of a stop order by the Department of Environment on 7 August 2020. Truck drivers employed by the company say that they are losing US$300/day as a result, according to the Fiji Times newspaper.

The Lami cement plant previously suspended operations subject to a stop order from the Department of Environment due to complaints about dust emissions on 7 December 2018.

US: Dragon Products has been fined US$67,000 by the Maine Department of Environmental Protection for exceeding air emissions regulations since 2013. Ammonia, carbon monoxide and particulate matter levels were all breeched, according to the Bangor Daily News newspaper. Other irregularities with standards were also noted, such as baghouse inlet temperature limits and clinker cooler opacity standards.

Canada: Residents at Port-Daniel-Gascons in Quebec reported dust emissions from the McInnis Cement plant in June and July 2020. This has been blamed on mechanical breakdowns and a computer failure, according to the Journal de Québec newspaper. The cement producer says it has reported the situation to the local authorities. Commercial production at the plant started in mid-2017. The incidents reportedly took place as the plant reached its maximum production capacity.

China: Henan Province has announced a planned rise in water and energy tariffs for cement producers that fail to meet current emissions standards and clean transportation requirements. Reuters News has reported that companies subject to the measures will pay US$0.07 – US$0.14/m3 more for water and up to US$0.01/kWh more for electricity. Henan enacted ‘ultra-low’ emissions limits of 10Mg/Nm³ of dust, 50Mg/Nm3 of NO_x and 100Mg/Nm³ of SO₂ in 2018. Cement plants in the province produce 105Mt/yr of cement.