Sustainability

MPA Lime members aim to produce and supply lime products in the most sustainable ways possible. The capital intensive nature of lime production and the long term investments in quarries and large scale manufacturing installations, together with the desire for business longevity means that sustainability is at the core of the lime businesses.

Monitoring of sustainability metrics through annual data collection and reporting provides evidence of the progress made within the sustainability commitment of the MPA Lime membership.

RESOURCE USE	Units	2011	2019	2020	2021	2022	2023	2024
Waste sent to landfill for all lime manufacturing	kg/t	0.77	0.49	0.20	0.22	0.18	0.25	0.24
Proportion of alternative fuels in dolime manufacture	%	36	34	29	36	34	40	46

ENERGY AND CLIMATE CHANGE
Units: kg CO₂/t	2011	2019	2020	2021	2022	2023	2024
CO₂ emissions from calcination of standard purity high calcium lime (process emissions)	663	680	674	610	660	699	681
CO₂ emissions from calcination of high calcium lime (process emissions)	673	678	675	622	669	706	691
CO₂ emissions from combustion of fossil fuels used to produce standard purity high calcium lime	231	247	247	229	233	246	215
CO₂ emissions from combustion of fossil fuels used to produce high calcium lime	234	247	248	243	236	248	217
CO₂ emissions from calcination of dolime (process emissions)	708	780	760	764	771	758	749
CO₂ emissions from combustion of fossil fuels used to produce dolime	636	532	537	563	567	495	520

NATURAL ENVIRONMENT
Units: kg emission/t	2011	2019	2020	2021	2022	2023	2024
Emissions of NOx from high calcium lime manufacture	0.25	0.15	0.13	0.11	0.14	0.18	0.18
Emissions of NOx from dolime manufacture	12.77	11.5	15.97	4.71	5.65	6.34	6.04
Emissions of particulate matter from high calcium lime manufacture	0.05	0.06	0.04	0.04	0.03	0.02	0.02
Emissions of particulate matter from dolime manufacture	0.46	0.11	0.11	0.49	0.58	0.50	0.62
Emissions of SO₂ from high calcium lime manufacture	0.14	0.04	0.02	0.02	0.01	0.01	0.02
Emissions of SO₂ from dolime manufacture	4.92	1.98	1.29	0.29	0.29	0.24	0.2

Positive Performance Statements

More than 30% decrease in NOx emissions from high calcium lime manufacture since 2011
Emissions of NOx from Dolime production reduced by more than half since 2011
Emissions of dust from high calcium lime production reduced by more than half since 2011
Reduction of more than 15% of dust emissions from manufacfture of dolime since 2022
More than ten fold reduction in emissions of SO₂ from high calcium lime production since 2011
More than 20 fold reduction in emissions of SO₂ from dolime production since 2011.

Sustainability

Positive Performance Statements

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