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How to ensure Compliance with SOx and NOx requirements

Written by Capt Rajeev Jassal on August 25, 2017
58
MARPOL-Annex-VI Air pollution is a real thing. And the world can already see what damages it is causing. Air pollution has caused a drastic increase in the number of Asthma patients. Air pollution has caused acid rain which damages the ecology. Acid-rain-effect And air pollution is the main contributor to global warming. So air pollution is a real thing and we need to act today. Air-pollution-quote That is what IMO must have said to itself in the year 1997 when it adopted Annex VI to the Marpol convention. Air pollution, Global warming, acid rain, ozone depletion. No matter how big words these may seem, it is not that tough to bring our contribution in preventing these. All we have to do is comply with the Annex VI of the Marpol. The first step towards compliance is the knowledge of what is expected from we seafarers. In this post, I will discuss 10 things we ought to know about Marpol Annex VI. Let us start. 1. SOx This is one of the components that Annex VI aims ...

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Comments (58)

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  • Rahul September 25, 2017
    Nicely explained sir.
    2

    Rajeev Jassal October 2, 2017
    Thanks Rahul...

    Luka May 31, 2018
    Sir please make a blog about oil discharging procedures as per marpol

  • Avinash Karnad October 17, 2017
    Sir, could you clarify on the following: 1) what does % m/m mean? 2) the IMO website states different dates for special areas with regards to "date of entry into force" and "in effect from".
    1

    Rajeev Jassal November 20, 2017
    %m/m is the percentage of mass per mass. So if 1 gram of sulphur is present in 1 kg (1000 grams) of oil, it will be 0.1 % m/m. I leave the maths up to you...

  • Farhan Maktabay October 25, 2017
    Finally understood Annex VI completely....Thanks a tonne
    1

    Rajeev Jassal November 20, 2017
    Thanks Farhan...

  • Shubham November 6, 2017
    finally i got it man , thanks a ton man
    1

    Rajeev Jassal November 20, 2017
    Thanks...

  • Gokul Rajaram November 10, 2017
    Very eloquent in explaining !
    1

    Rajeev Jassal November 20, 2017
    Thanks Gokul...

  • ARUNAVA MAZUMDER November 21, 2017
    Hi Mr.Jassal, really u have so nicely & so easily make us understood.Thanks for ur contribution.The fundamental was missing from all other books i read.Preparing for my orals now; at least in this section i would be more comfortably than the surveyor i think.
    1

    Rajeev Jassal November 22, 2017
    Glad you found it useful Arunava...

  • siddharth gaur December 26, 2017
    Amazing work in a simple manner.Keep the good work going sir.
    1

    Rajeev Jassal December 27, 2017
    Glad you liked it Siddharth...

  • Priyankar Mitra January 9, 2018
    Thank you for the explanation. I have a further query, if there is no approved NOX spare onboard then what will be the correct course of action ?
    0

  • Ercan Altay January 10, 2018
    I read many times annex vi but first time covered full thank you very much Capt. Rajeev
    0

  • Masud Ahmed March 2, 2018
    Its very clear to me now.tnks.
    0

  • krunal March 9, 2018
    sir hats off to you.. before i thoght EIAPP AND IAPP WOULD BE THE SAME..BUT NOW I KNW...THANK YOU SIR..
    0

  • Ankit Singh March 19, 2018
    I had searched Google about nox, sox...earlier but there was only 9 ways to reduce this 5 ways to increase that and so on... Finally found your article! Nicely explained crucial points.
    0

  • Prashant reddy March 21, 2018
    thank u sir. explained in simple language. finally understood sox and nox.
    0

  • Alexandr March 28, 2018
    I'm very appreciate You for Yrs detailed and edifying lecture.
    0

  • Tharindu Kahanda April 6, 2018
    Good job....thank you..sir...
    0

  • TINTUN April 23, 2018
    It is required to be updated every engine maintenance job done all jobs under Technical file section D? replace/overhaul.
    0

  • Etinyene Johnson May 28, 2018
    Sir please am carrying out a research on pollution from engine exhaust, and I will need your help. This is my email- etinyenejohnson@gmail.com Thanks
    0

  • Ankur Khare July 1, 2018
    Thanks for the explanation, it was simple and easy to understand. Very helpful read.
    0

  • Amit Dhiman September 16, 2018
    For SOx controlling an alternative is "Exhaust Gas Cleaning"
    0

  • joel basco September 19, 2018
    kindly explain how to accomplish nox record, specially the difference of ID number and parts number portions for FO inj. nozzle. tnx.
    0

  • jojo abadiano December 29, 2018
    thank you for the very useful information. my question is, is there a form which must be filled up just in case you renew or check a specific part of an engine? example nozzles,plunger and barrel. because recently we were inspected by an port state and he is looking for a form which must be filled up when i change a nozzle of a generator engine.
    0

  • DEEPAK SINGH February 3, 2019
    no comparison to this extremely easy way of explanation. I worry to wonder if you ever stopped writing articles. Please never do. In my opinion seafarer fraternity has never seen any such source of bright knowledge anywhere in books or internet; even the teachers. As a fellow seafarer, I am ready to extend any support whatsoever , should you require in this process of sharing your knowledge. You undoubtedly put a lot of efforts in gathering the quality of material that we are able to access with just single easy click. Thanks a lot captain
    0

  • MANISH KUMAR February 8, 2019
    Thanks sir
    0

  • samitha wickramarathne February 27, 2019
    thank you very much sir...
    0

  • Khushru Irani April 6, 2019
    Outstanding information!
    0

  • Ephraim Gbadeh April 16, 2019
    Well said sir. Thanks so much for such brilliant explanation. It's really essential that we, seafarers, have such knowledge in order to save our universe!!!
    0

  • Monica Nancy Candny April 16, 2019
    Thanks so much sir, for this good information. Its very important for us, seafarers, to have a good knowledge about air pollution in order to save the world.
    0

  • bob April 27, 2019
    What about frequency of verification, monthly?annual?need your wise suggestion.
    0

  • SIVARAMAN BABU July 24, 2019
    Very nicely explained sir
    0

  • David August 7, 2019
    Many thanks for your detailed explanation!
    0

  • Krishna August 8, 2019
    Kindly explain HSSC and ESP
    0

  • kaushik dutta August 8, 2019
    thanks a ton for explaining this nox technical file in such a way .
    0

  • Pestmonster October 15, 2019
    It clearly and easily understood by everyone. Thanks for the explanation http://humatech.co.kr/index.php?lan=eng
    0

  • Huma-I http://humatech.co.kr/bbs/content.php?co_id=e_cont_0201 October 16, 2019
    Thanks so much sir, for this good information.
    0

  • Huma-i October 17, 2019
    Nicely explained crucial points. air quality monitor
    0

  • Farooque October 26, 2019
    Excellent explanation Great job sir!!!!
    0

  • Matt Mathew November 18, 2019
    "You can only buy replacement parts from the original supplier" Whilst engine builders may try to convince you of this, it is simply untrue. The engine’s NOx technical file must be supplied to the vessel upon delivery and this technical document gives all the parameters for all NOx influencing components and the requirements stipulated must be met irrespective of supplier in order to renew your environmental certificate. But In order for the class society to reissue the environmental certificate for the vessel, a surveyor needs to check all components and settings using the NOx technical file as reference. This process and the supporting documentation must be supplied to them irrespective of where the replacement is purchased.
    0

  • Yadnesh Kuveskar January 9, 2020
    sir, your Simple way of explaining clears so many doubts.
    0

  • Muhammad Hafiz February 3, 2020
    Very nicely presented.
    0

  • Amar anand April 2, 2020
    sir please write blog on MLC and STCW
    0

  • Amar anand August 9, 2020
    Great Work Sir....who says you do not have technical bone.....I am an engineer....You have very good knowledge which many engineers is not having....keep doing good work sir...
    0

  • Sajid April 27, 2021
    Very nice
    0

  • Yokesh sekar September 15, 2021
    Hi sir...your contents are great, helping me a lot for class 2 exam now ...keep do more...thank you
    0

  • Sarjil October 16, 2021
    Very well explained nox n sox..
    0

  • jagadesh November 30, 2021
    Hii Sir, Your blog is very useful. Could you please share the procedures for conducting Nox spot test in SCR onboard for Annual survey to renew IAPP Certificate.
    0

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  • Saminda zoysa March 3, 2022
    Excellent explanation Sir. Before reading this article this subject was like Greek to me. Now I found it simple. Thank you very much
    0

  • RoBo November 21, 2022
    If measurement and monitoring methods are not mandatory, and not used, is it therefore impossible to prove that even after 10 or 20 years in operation, the ship’s engines still comply with these requirements?
    0

Capt Rajeev Jassal

About Capt Rajeev Jassal

Capt. Rajeev Jassal has sailed for over 24 years mainly on crude oil, product and chemical tankers. He holds MBA in shipping & Logistics degree from London. He has done extensive research on quantitatively measuring Safety culture onboard and safety climate ashore which he believes is the most important element for safer shipping.

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