Advert

At last, Mepa identifies Marsa power station as likely source of 'black dust'

A report on the nature, distribution and likely source of coarse black dust particles in Malta, has concluded that the Marsa Power Station is the likely source of the problem, Mepa said today.

The report, which was drawn up by Professor Alfred J. Vella and a team working at the University of Malta, was commissioned by the Malta Environment and Planning Authority (MEPA) in August 2009, following an inconclusive investigation it had carried out a year earlier.

Long-standing complaints about black dust have originated mainly from Fgura and other towns in the southern area of the Grand Harbour such as Paola and Tarxien, with a spate of complaints received in the summer months of 2009.

Prof Vella's report is based on a study, which was carried out between August 2009 and November 2010 and its conclusions complement the conclusions reached by another study conducted by the same author in 1995 on "limestone surfaces in built-up environments as indicators of atmospheric pollution" and published in an international scientific journal.

"Given the large size of the black dust particles, the report concludes that their source is in close proximity to the areas which are highly affected by its deposition. The morphology and chemical composition of the analysed dust infer that combustion of fuel oil is the likeliest source of these soiling episodes and this, together with Malta's prevailing wind direction, all point to the Marsa power station as the constant main source of coarse black dust particles, although other sources cannot be excluded," Mepa said.

The Authority said the report anticipates that once the Marsa power station is decommissioned, deposition of the coarse black particles will very likely decrease considerably.

"However, the fine black dusts which motor traffic produces constantly and continuously will continue to affect any area where traffic flows are high."

In 2009 the Authority established emission limit values for dust, sulphur dioxide and nitrogen oxides at the Marsa power station through the issuing of an Integrated Pollution Prevention and Control (IPPC) permit, and a derogation of 20,000 hours was applied, following which the Marsa power station will be decommissioned.

The full report and executive summary can viewed on the Authority's website http://www.mepa.org.mt/air-publications

Advert

119 Comments

Post comment

Comments are submitted under the express understanding and condition that the editor may, and is authorised to, disclose any/all of the above personal information to any person or entity requesting the information for the purposes of legal action on grounds that such person or entity is aggrieved by any comment so submitted.

At this time your comment will not be displayed immediately upon posting. Please allow some time for your comment to be moderated before it is displayed.

Your User Profile is incomplete.
Please click here to complete your profile before posting comments.

Mr Edward Mallia

Sep 19th 2011, 23:28

The whole report is a simple charade. It was obvious from the beginning that the fairly sudden onset of black dust was caused by the switching off -- on ministerial orders -- of the Marsa precipitators. Professor Alfred Vella and his University team constituted a sort of procrastination brigade designed to stretch times scales to the point when the general public has other things to worry about. After all parliament set up a black dust committee which has never held any sessions. It simply fell by the wayside, overwhelmed by 'the divorce debate'. Now we have the final act of this report, which should be buried in unhallowed ground.

Tony Zammit

Sep 20th 2011, 06:45

LOL
buzullotti: Starts when student go back to school and in rainy weather, slip sliding away, which should be with us soooon.

Mr Angus Black

Sep 19th 2011, 18:38

Forsi jibnu power station il-Mellieha ghax ilhom itektkuwha li hemm bzonn wiehed dawk l-inhawi. Forsi il-progressivi stess jibnuwha jekk xi darba jitilghu fil-gvern.

Charles J. Buttigieg

Sep 19th 2011, 20:29

Angus,b'par idejn sodi kollox possibli.

Mr Albert Dimech

Sep 19th 2011, 17:45

How on earth can you compare Malta to Germany? LOL.........

Mr John Bonnici

Sep 19th 2011, 17:50

or more likely they are installed, they know how to operate them, but they told them to switch them off !! As by te case of a couple of months ago which was also revealed by the times.

Peter Seebohm

Sep 19th 2011, 19:05

Mr. Dimech

I surely don´t compare Germany with Malta. How can I compare beautiful Malta with a bureaucracy dictatorship of administration, like it is at Germany

It was only telling you a fact

Pule' Carmel

Sep 19th 2011, 22:12

Professor Alfred Vella is a highly respected expert in his field and such an expression should not have been used here.
Professor Carmel Pule'

Peter Camilleri

Sep 20th 2011, 10:56


@ Mr Carmel Pule'

I cannot comment on your suggestions, as I am simply unable to fathom exactly what you mean. Regarding the last part of your contribution, you should realise, of course, that there are many ifs in life. You say that if the Authorities concerned would only listen to you, we can have a better Malta. And if Barack Obama had only listened to Edward Debono, he would have had a better America !!!

I am afraid I have no idea what your field of expertise is, but your comment, taken as a whole amply demonstrates that you are certainly no authority in orthography - I use the word in its colloquial sense.

Pule' Carmel

Sep 20th 2011, 16:47

Malta is not made efficient by what we write on these comments but what we actually do in real life.

Pule' Carmel

Sep 20th 2011, 17:50

*****The Power Station is a heat engine whose efficiency depends on the difference of temperatures of the incoming steam to the turbine and the output temperature at the condenser. The higher this difference the cheaper we get our electricity. I shall not talk about the smoking end of the power station, but a grey hew (not black) at the Chimney is desired. Now the condenser end is cooled by seawater and if this sea water gets too hot as it does not circulate well enough at Menqa/Marsa, then the condenser temperature will not be the lowest.
Now at any power station, if you separate the incoming and outgoing cooling flow of water in the condenser, the condenser temperature will be cooler hence a more efficient Station. At Marsa, Menqa, things were not optimally designed, I believe.
To help this cooling, one needs a good volume of seawater circulation and so the deeper the sea the better for cooling. Now at Marsa we get a lot of silting due to the Marsa Floodwater channel. All the Floodwater channel from Attard etc, and Siggiewi and other areas, come down through the Qormi Marsa floodwater channel depositing tons of silt at Menqa where the condensers of the Marsa Powers Station obtain their cooling water. The silt causes the bottom of the sea to rise and so the circulation of water is not efficient, raising its temperature reflecting on less cooling efficiency and more smoke at the chimney to get the same power eventually.
Basically this was the essence of my contribution. I do not always intend for my comments to be understood by everybody, but the authorities concerned would understand what I am hinting at. As far as my orthography and colloquial mistakes, you are correct, I need to be careful, but at my age, I suppose dementia will soon starts having its effect and I have to be more observant. But really I do not think it would worry me that much, hoping that the readers would be tolerant, and dedicate more importance to the essence of the contents rather than the symbolic scenario. However you are correct, and I must be careful, if my dementia does not overshadow my being careful!
Here is an interesting situation, no matter how I write, even with spelling mistakes, the final essence of the symbols I write on paper, does not exist in the symbols I print, but essence is in the mind of the reader through his own education. If the reader was not prepared for the real essence in what I write, years before hand , he will still not understand it if during his education, he was not made familiar with the real essence of symbols I print, even if they were perfect in orthography and colloquialism.

Peter Camilleri

Sep 20th 2011, 18:45


@ Mr Carmel Pule'

Meaningless platitudes convey nothing new, but if you really must have the last word, be my guest. Bye-bye.

Simon Cassar

Sep 19th 2011, 18:33

insejt l arriva :)

Cari A. M

Sep 19th 2011, 16:31

Love your comment!! But we have to look at the bright side of that... all those people wouldn't have drowned :P

Mr Joseph Aquilina

Sep 19th 2011, 15:45

name, shame and fire!!

Mr Victor Calleja

Sep 19th 2011, 15:13

You my dear friend by by paying higher utility bills.

Mr Joseph Calleja

Sep 19th 2011, 15:19

The responsibly and the cost rest entirely on the Government for being so negligent in recognizing the problem in the first place. Any dummy could have told you that black dust was coming from the Marsa Power Station, but we have to an assessment of everything and spend thousands of euros to confirm that.

Paul Micallef

Sep 19th 2011, 15:08

Mela naghmluha kif qed jipproponi l gvern tieghek ha nigu ottu! Nuzaw prototype li hadd qatt ma uza u bil fuel oil! Inteligenti int ta sur Black. Nahseb int l espert, dnub ma jlahhqux lilek!

Mr Angus Black

Sep 19th 2011, 16:33

@ Paul Micallef

Espert m'inhix, imma nista nfakkrek li:

Il-PS tal-Marsa imbena taht gvern Laburista.
Il-PS tal-Marsa kien 'second hand'.
Il-PS tal-Marsa ilu jdahhan min 1950.
Il-PS tal-Marsa kien jahdem bil-HF - xejn gdid.
Il-PS tal-Marsa kien ikkonvertit minn Mintoff milli jahraq iz-zejt u ghamlu jahdem bil-faham.
Gvern Nazzjonalista rega qalbu biex jahdem biz-zejt kif kien qabel u b'hekk naqqas il-hsara ambjentali.

X'ghamel Leo Brincat fi zmien gvernijiet Socjalisti? Jew jahasra kien ghadu zghir wisq f'ghajnejn il-mexxejja ta dak iz-zmien?

Il-Laburisti qatt ma fethu halqhom matul dan iz-zmien kollu imma issa minn mindu lahaq Joseph, saru ghorrief f'daqqa wahda. Qatt, per ezempju, ma fethu halqhom dwar it-trab iswed, imma meta t-tarzna ghaddiet f'idejn Palumbo, inqala rebus u pperikolaw l-impieg ta hafna.

Il-Partit Laburista maghmul min qabda qerrieda u kull min jimxi warajh veru ghama u trux.

Joseph Borg

Sep 19th 2011, 19:57

PS il gvern tieghek Mr Black ilu fil gvern min 1987!
PS 24 sena biex isolvi il problema!!!

Jiena forsi ghama u trux imma int tghix fil qamar ghandu jkun jew fin 1950!

Michael Lloyd

Sep 19th 2011, 15:16

Why the outburst against cars? It's the power station causing the pollution. And what business is it of yours what size cars people elect to drive? If you hate cars so much go and live on the island of Sark in the Channel Islands between England and France. Cars are banned there.

Advert
Advert