- Latest available (Revised)
- Original (As made) - English
- Original (As made) - Welsh
This is the original version (as it was originally made). Wales Statutory Instruments are not carried in their revised form on this site.
Rheoliad 4(5), (6) a (9)
Isafswm y pwyntiau samplu ar gyfer mesuriadau sefydlog parhaus i asesu ansawdd aer gyda golwg ar gydymffurfedd â'r gwerthoedd targed, yr amcanion hirdymor a throthwyon gwybodaeth a rhybuddio os mesuriadau parhaus yw'r unig ffynhonnell wybodaeth.
| Poblogaeth (x 1,000) | Crynoadau (trefol a maestrefol) (a) | Parthau eraill (maestrefol a gwledig) (a) | Cefndir Gwledig |
|---|---|---|---|
(a) o leiaf un orsaf mewn ardaloedd maestrefol, lle mae datguddiad uchaf y boblogaeth yn debyg o ddigwydd. Mewn crynoadau, dylai o leiaf 50 y cant o'r gorsafoedd fod wedi'u lleoli mewn mannau maestrefol. | |||
(b) 1 orsaf fesul 25,000 km2 yw'r argymhelliad ar gyfer tir cymhleth. | |||
| 0 — 250 | 1 | 1 orsaf/50,000 km2 fel dwysedd cyfartalog ar gyfer pob parth fesul gwlad (b) | |
| 251 — 500 | 1 | 2 | |
| 501 — 1,000 | 2 | 2 | |
| 1,001 — 1,500 | 3 | 3 | |
| 1,501 — 2,000 | 3 | 4 | |
| 2,001 — 2,750 | 4 | 5 | |
| 2,751 — 3,750 | 5 | 6 | |
| > 3,750 | 1 orsaf ychwanegol fesul 2 filiwn o drigolion | 1 orsaf ychwanegol fesul 2 filiwn o drigolion | |
Rhaid i nifer y pwyntiau samplu ar gyfer osôn, mewn cyfuniad â dulliau eraill o asesu ychwanegol megis modelu ansawdd aer a mesuriadau nitrogen deuocsid sydd wedi'u cydleoli, fod yn ddigon i archwilio tuedd llygredd osôn a gwirio cydymffurfedd â'r amcanion hirdymor. Caniateir lleihau nifer y gorsafoedd sydd wedi'u lleoli mewn crynoadau a pharthau eraill i draean o'r nifer a bennir yn Rhan I. Os gwybodaeth o orsafoedd mesuriadau sefydlog yw unig ffynhonnell yr wybodaeth, dylid cadw o leiaf un orsaf fonitro. Os canlyniad hyn, mewn parthau lle ceir asesiad ychwanegol, yw nad oes gan barth unrhyw orsaf ar ôl, rhaid sicrhau drwy gydlynu â nifer y gorsafoedd mewn parthau cymdogol fod asesiad digonol o grynodiadau osôn yn erbyn amcanion hirdymor yn cael ei gynnal. Dylai nifer y gorsafoedd cefndir gwledig fod yn 1 am bob 100,000 km2.
Latest Available (revised):The latest available updated version of the legislation incorporating changes made by subsequent legislation and applied by our editorial team. Changes we have not yet applied to the text, can be found in the ‘Changes to Legislation’ area. The revised version is currently only available in English.
Original (As Enacted or Made) - English:The original English language version of the legislation as it stood when it was enacted or made. No changes have been applied to the text.
Original (As Enacted or Made) - Welsh:The original Welsh language version of the legislation as it stood when it was enacted or made. No changes have been applied to the text.
Access essential accompanying documents and information for this legislation item from this tab. Dependent on the legislation item being viewed this may include:
Use this menu to access essential accompanying documents and information for this legislation item. Dependent on the legislation item being viewed this may include:
Click 'View More' or select 'More Resources' tab for additional information including: