- Y Diweddaraf sydd Ar Gael (Diwygiedig)
- Pwynt Penodol mewn Amser (01/01/2024)
- Gwreiddiol (a wnaed Fel)
Point in time view as at 01/01/2024.
There are currently no known outstanding effects for the The Air Quality Standards (Scotland) Regulations 2010, Section 2.
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2. In these Regulations—
“ambient air” means outdoor air in the troposphere, excluding workplaces as defined by Council Directive 89/654/EEC M1 where provisions concerning health and safety at work apply and to which members of the public do not have regular access;
“AOT 40” (expressed in (μg/m3).hours) means the sum of the difference between hourly concentrations greater than 80 μg/m3 (= 40 parts per billion) and 80 μg/m3 over a given period using only the one-hour values measured between 0800 hours and 2000 hours Central European Time each day;
“arsenic”, “cadmium”, “nickel” and “benzo(a)pyrene” mean the total content of those elements and compounds within the PM10 fraction present in ambient air;
[F1“Directive 2004/107/EC” means Directive 2004/107/EC of the European Parliament and of the Council relating to arsenic, cadmium, mercury, nickel and polycyclic aromatic hydrocarbons in ambient air [F2(but see regulation 2A)];]
[F3“Directive 2008/50/EC” means Directive 2008/50/EC of the European Parliament and of the Council on ambient air quality and cleaner air for Europe [F4(but see regulation 2A)];]
“fixed measurements” means measurements taken at fixed locations, either continuously or by sampling from time to time, to determine levels of pollutants in accordance with the relevant data quality objectives;
“indicative measurements” means measurements which meet data quality objectives that are less strict than those required for fixed measurements;
“margin of tolerance” means the percentage of the limit value by which that value may be exceeded in a given year;
“oxides of nitrogen” means the sum of the volume mixing ratio (ppbv) of nitrogen monoxide (nitric oxide) and nitrogen dioxide expressed in units of mass concentration of nitrogen dioxide (μg/m3);
“ozone precursor substances” means substances which contribute to the formation of ground level ozone;
“PM10” means particulate matter which passes through a size-selective inlet as defined in the reference method for the sampling and measurement of PM10, EN 12341: 1998 M2, with a 50 per cent efficiency cut-off at 10 μm aerodynamic diameter;
“PM2.5” means particulate matter which passes through a size-selective inlet as defined in the reference method for the sampling and measurement of PM2.5, EN 14907: 2005c, with a 50 per cent efficiency cut-off at 2.5μm aerodynamic diameter;
“particulate matter” means PM2.5 and PM10;
“pollutant” means any of the following:—
sulphur dioxide;
nitrogen dioxide;
oxides of nitrogen;
particulate matter;
lead;
benzene;
carbon monoxide;
arsenic;
cadmium;
mercury;
nickel;
benzo(a)pyrene or other polycyclic aromatic hydrocarbons;
ozone;
“polycyclic aromatic hydrocarbons” means those organic compounds composed of at least two fused aromatic rings made entirely from carbon and hydrogen; and
“total gaseous mercury” means elemental mercury vapour (Hg0) and reactive gaseous mercury, being water-soluble mercury species with sufficiently high vapour pressure to exist in the gas phase.
Textual Amendments
F1Words in reg. 2 substituted (31.12.2016) by The Air Quality Standards (Scotland) Amendment Regulations 2016 (S.S.I. 2016/376), regs. 1, 3(a)
F2Words in reg. 2 inserted (1.6.2022) by The Environment and Trade in Animals and Related Products (EU Exit) (Scotland) (Miscellaneous Amendment) Regulations 2022 (S.S.I. 2022/138), regs. 1, 9(2)(a)
F3Words in reg. 2 substituted (31.12.2016) by The Air Quality Standards (Scotland) Amendment Regulations 2016 (S.S.I. 2016/376), regs. 1, 3(b)
F4Words in reg. 2 inserted (1.6.2022) by The Environment and Trade in Animals and Related Products (EU Exit) (Scotland) (Miscellaneous Amendment) Regulations 2022 (S.S.I. 2022/138), regs. 1, 9(2)(b)
Marginal Citations
M1O.J. No. L 393, 30.12.1989, p.1, amended by Directive 2007/30/EC (O.J. No. L 165, 27.6.2007, p.21).
M2These standards are issued by the European Committee for Standardisation (CEN). Copies may be obtained from CEN at 36, Rue de Strassart B-1050, Brussels, Belgium, http://www.cenorm.be.
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