Air

Air emissions

We monitor emissions worldwide not only of greenhouse gases but also of air pollutants in accordance with relevant local legislation. The operation of our air separation plants results in hardly any direct emissions to air. Other production processes, for example in hydrogen plants and steam boilers, can result in emissions of inorganic gases such as carbon monoxide (CO), sulphur oxides (SOX) and nitrogen oxides (NOX). Volatile organic compounds (VOCs) are mainly released during the coating and cleaning of metals used for instance in gas cylinders, storage tanks and plant components.

 (XLS:) Download

Emissions to air (in tonnes)1,2

 

 

 

 

 

 

 

 

 

 

 

 

 

2016

 

2015

 

2014

 

2013

Geprüft von KPMG

Assured by KPMG

1

In line with the information in the Financial Report 2016, the figures provided for the years 2015 and 2016 exclude the business of the logistics service provider Gist, as it has been reported as a discontinued operation.

2

In 2014, Linde has refined the determination method for emissions to the air. Where available, measurements were used for the new methodology. For production sites for which no measurements were available, we estimated the figures. Where possible, the reported figures for 2013 were recalculated based on these new methods. The determination method for VOC emissions could not be applied retroactively. Therefore, the values for this indicator are not comparable for the years 2013 and 2014.

3

The determination method for ammonia was revised during 2015. Reported ammonia emissions include uncontrolled releases to the atmosphere and since 2015 have been extended to include controlled releases to abatement systems at certain sites. The figure for 2014 has been restated accordingly.

4

The figure for SOX emissions disclosed in the Corporate Responsibility Report 2015 was too low and has been restated retrospectively.

VOC (volatile organic compounds)Geprüft von KPMG

 

 

531

 

598

 

657

 

92

NH3 (ammonia)3 Geprüft von KPMG

 

 

45

 

73

 

165

 

12

CO (carbon monoxide)Geprüft von KPMG

 

 

2,634

 

3,213

 

3,325

 

2,177

NOx (nitrogen oxides)Geprüft von KPMG

 

 

4,879

 

6,443

 

6,762

 

6,273

SOx (sulphur oxides)4 Geprüft von KPMG

 

 

685

 

708

 

447

 

122

We work together with our customers and with scientific and research partners to devise solutions which will minimise emissions to air. Our LoTOx™ technology is being used for example in the chemical industry to capture and store nitrogen oxides and other pollutants from waste gases arising from combustion processes. By the end of 2016, we had installed more than 30 such systems in customers‘ plants around the world, especially in the United States and China. With these systems, we enable our customers to avoid more than 17,000 tonnes of NOX emissions per annum. Our COROX® LowNOx technology also enables us to reduce nitrogen oxide emissions in the chemical industry through the use of oxygen.