While the number of donors is rising and waiting lists are reducing, there are now 6,000 people waiting for a lifesaving organ transplant in the UK.
People aged over 50 are also less likely to join the register, because they mistakenly assume their organs are no longer healthy enough to donate.
Duque said human transplantable organs include kidneys, liver, lungs, heart, intestines, pancreas, and human tissues such as eye tissues, bones, skin, and blood vessels.
NHS Blood and Transplant is calling on people to urgently talk to their families about organ donation this week - which is Organ Donation Week - because a lung transplant is the only long-term hope for everyone on the waiting list.
Another factor is thought to be an increased awareness of the benefits of lung transplants, leading to an increased number of referrals.
"As the families with first-hand experience of organ donation speak out, they support one of the campaign's aims to remove the stigma associated with talking about final wishes with our loved ones".
During Organ Donation Week, the NHS is urging families to talk about donation with the message - "Words Save Lives".
"I do understand why people are a bit amusing about it but you have to think about it basically and think what use are they when you're not alive and there's always a lot of ill people out there who need transplants".
His wife Karen, 49, said: "Because I knew what Mark's wishes were, it made it easier for me to make that decision". I just try and get on with my life. If more people agreed to donate, more lives would be saved in West Sussex and around the country.
TEN people in the borough have died waiting for an organ transplant during the last five years, it has been revealed amid Organ Donation Week. It's obviously a really hard time when you have just lost someone but if that person has said they want to donate then it makes the decision for the family a bit easier. However, people need to tell their family to help ensure their family supports their decision when they are approached about donation by a specialist nurse in hospital.