Skip Ribbon Commands
Skip to main content

Air Quality

The main sources of atmospheric emissions for the mining sector are: particulate matter (PM), sulfur oxides (SOx) and nitrogen oxides (NOx), as well as greenhouse gases.

Vale's atmospheric emissions management focuses on the inventory of sources, that can be fixed or mobile, punctual or diffuse, the adoption of control systems and emission monitoring plans. We also maintain air quality monitoring stations around our operating units.

KPIs Report

Total Air Emissions in 2018

Particulate Matter 8.1 thousand tons

SOx 170.7 thousand tons

NOx 81.9 thousand tons

Performance evolution

Atmospheric Emissions Evolution

Emissions of Particulate Matters

(thousand tons)

SOx Emissions

(thousand tons)

NOx Emissions

(thousand tons)

Goals

Each operating unit has defined targets for reducing emissions and optimizing processes according to the operation. The theme was included in the Sustainability KPI (company variable compensation indicator), with targets set for some units where the potential impact is greater, as shown in the table below.

Vale Unit KPI
Manganese - Simões Filho Reduction of particulate emissions
Pelletizing - VGR Increased operating efficiency of gas washers
Pelletizing -Oman Oman Pelletizing RAMPs emission rate reduced by 3%
Pelletizing - Tubarão 10% reduction in the particulate matter emission rate at the Tubarão Port
Pelletizing - Tubarão 1% reduction in particulate matter emission rate from Pelletizing chimneys
Pelletizing - Tubarão 10% reduction in particulate matter emission rate in the pelletizing yard
Mozambique Actions to reduce particulate emissions in Mozambique / Moatize

Manganês -Simões Filho

Unidade Vale
Manganês -Simões Filho
Indicador / KPI
Redução das emissões de particulado
Prazo
??????

Pelotização VGR

Unidade Vale
Pelotização VGR
Indicador / KPI
Aumento do rendimento operacional dos lavadores de gases – Pelotização - Vargem Grande
Prazo
??????

Pelotização Omã

Unidade Vale
Pelotização Omã
Indicador / KPI
Redução de 3% da taxa de emissão das RAMPs da Pelotização de Omã
Prazo
??????

Pelotização Tubarão

Unidade Vale
Pelotização Tubarão
Indicador / KPI
Redução de 10% da taxa de emissão de material particulado pátio do Porto de Tubarão
Prazo
??????

Pelotização Tubarão

Unidade Vale
Pelotização Tubarão
Indicador / KPI
Redução de 1% da taxa de emissão de material particulado das chaminés da Pelotização
Prazo
??????

Pelotização Tubarão

Unidade Vale
Pelotização Tubarão
Indicador / KPI
Redução de 10% da taxa de emissão de Material particulado no Pátio de Pelotização
Prazo
??????

Moçambique

Unidade Vale
Moçambique
Indicador / KPI
Ações para redução das emissões de particulado em Moçambique/Moatize
Prazo
??????

Impact Management

For the impacts management, we have adopted a system to improve operational processes, seeking continuous improvement in control measures and adoption of new technologies, focusing on reducing emissions and improving air quality indicators.

Risks

Vale seeks to reduce diffuse emissions by adopting a series of measures such as improving sprinkler systems, testing dust suppressors, improving management processes, among others. These practices were present while working on the Vitória a Minas Railroad and resulted in significant reductions in particulate matter emissions.

We also maintain a policy of improving operational processes, control system and increased productivity, seeking to adopt lower sulfur fuels.

Business Case

PET Recycling

In partnership with the Espírito Santo Federal University (UFES in portuguese), Vale developed and patented a biodegradable dust suppressor resin produced by a chemically recycling PET. The product has a characteristic sealant that maintains moisture in stockpiled material, railroad wagons and unpaved roads. This initiative and technology will help Vale to reduce its particulate matter emissions, improving air quality in surrounding communities, in addition to foment plastic waste recycling, making businesses more sustainable.

Vale installs mist cannons at Tubarão

In 2018, was signed a new Environmental Commitment Term (TCA in Portuguese) to reduce particulate matter emissions at Tubarão operational unit in Vitória (ES). The term signature involved the Federal Public Ministry, State Public Ministry, State Secretariat for the Environment and State Environmental Institute and aims to ensure transparency in implementing all initiatives presented by the Environmental Master Plan.

Clean AER Project in Sudbury, Canada

At our Sudbury unit in Canada, Vale completed the Clean AER Project, in which a total of US$ 1 billion has been invested since 2012. The project reduced 85% of SOx emissions from the foundry at Copper Cliff. In addition, the project will also reduce our smelter's greenhouse gas emissions by 40%.

Read Also

Waste

Waste

We encourage the generation of jobs and income from recycling practices

Read more
Imagem Biodiversidade

Climate Change

Vale is geared towards a low-carbon chain

Read more