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The Air Quality Standards (Scotland) Regulations 2010

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PART 1General

Citation, commencement and extent

1.—(1) These Regulations may be cited as the Air Quality Standards (Scotland) Regulations 2010 and come into force on 11th June 2010.

(2) These Regulations extend to Scotland only.

Definitions

2.  In these Regulations—

“ambient air” means outdoor air in the troposphere, excluding workplaces as defined by Council Directive 89/654/EEC(1) 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;

“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(2);

“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(3);

“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(4), 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:—

(a)

sulphur dioxide;

(b)

nitrogen dioxide;

(c)

oxides of nitrogen;

(d)

particulate matter;

(e)

lead;

(f)

benzene;

(g)

carbon monoxide;

(h)

arsenic;

(i)

cadmium;

(j)

mercury;

(k)

nickel;

(l)

benzo(a)pyrene or other polycyclic aromatic hydrocarbons;

(m)

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.

Designation of competent authority

3.  The Scottish Ministers are designated as the competent authority for the purposes of Directive 2008/50/EC (other than for the purpose specified in Article 3(f) of that Directive) and for the purposes of Directive 2004/107/EC.

Zones and agglomerations

4.—(1) The Scottish Ministers must, for the purposes of these Regulations, divide the territory of Scotland into zones and agglomerations.

(2) A zone is classified as an agglomeration if it is a conurbation with a population in excess of 250,000 inhabitants.

(3) Unless the context otherwise requires, in these Regulations references to a zone includes a zone which has been classified as an agglomeration.

(1)

O.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).

(2)

O.J. No. L 23, 26.1.05, p.3, amended by Regulation (EC) No. 219/2009 (O.J. No. L 87, 31.3.09, p.109).

(3)

O.J. No. L 152, 11.6.08, p.1.

(4)

These 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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